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entitled 'Medicare: Modest Eligibility Expansion for Critical Access 
Hospital Program Should Be Considered' which was released on September 
19, 2003.

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Report to Congressional Committees:

United States General Accounting Office:

GAO:

September 2003:

Medicare:

Modest Eligibility Expansion for Critical Access Hospital Program 
Should Be Considered:

Critical Access Hospital Program:

GAO-03-948:

GAO Highlights:

Highlights of GAO-03-948, a report to the Senate Committee on Finance, 
the House Committee on Ways and Means, and the House Committee on 
Energy and Commerce 

Why GAO Did This Study:

Critical Access Hospitals (CAHs) are small rural hospitals that 
receive payment for their reasonable costs of providing inpatient and 
outpatient services to Medicare beneficiaries, rather than being paid 
fixed amounts under Medicare’s prospective payment systems. Between 
fiscal years 1997 and 2002, 681 hospitals have become CAHs.

In the Medicare, Medicaid and SCHIP Benefits Improvement and 
Protection Act of 2000, GAO was directed to examine requirements for 
CAH eligibility, including the ban on inpatient psychiatric or 
rehabilitation distinct part units (DPUs) and limit on patient census, 
and to make recommendations on related program changes. 

What GAO Found:

Using fiscal year 1999 hospital cost report data, GAO identified 683 
rural hospitals as “potential CAHs” based on their having an annual 
average of no more than 15 acute care patients per day. About 14 
percent (93) of these potential CAHs operated an inpatient psychiatric 
or rehabilitation DPU, which they would have to close to convert to 
CAH status. Among existing CAHs, 25 previously operated a DPU but had 
to close it as part of becoming a CAH. Among the potential CAHs that 
operated a DPU, about half had a net loss on Medicare services, 
indicating they might benefit from CAH conversion. Officials in some 
hospitals expressed a reluctance to close their DPU, even if 
conversion would benefit the hospital financially, as they believe the 
DPU maintains the availability of services in their community. Because 
inpatient rehabilitation and psychiatric services are 
disproportionately located in urban areas, even a small number of 
rural DPU closures may exacerbate any disparities in the availability 
of these services. 

Using 1999 Medicare claims data, GAO found 129 potential CAHs that 
likely would have been able to meet the CAH census limit of no more 
than 15 acute care patients at any given time if not for a seasonal 
increase in their patient census. Seasonal increases in patient census 
were common among the hospitals GAO studied, generally occurring 
during the winter flu and pneumonia season. For most potential CAHs, 
their patient census was typically low enough that a small seasonal 
increase did not cause them to exceed CAH limits. For the 129 
potential CAHs that would have had difficulty staying under the CAH 
limit due to seasonal variation, they could have accommodated their 
patient volume and had greater flexibility in the management of their 
patient census if the CAH census limit were changed from an absolute 
limit of 15 patients per day to an annual average of 15 patients. 


What GAO Recommends:

GAO suggests that the Congress may wish to consider allowing hospitals 
with a DPU to convert to CAH status. GAO also suggests that the 
Congress may wish to consider changing the CAH limit on acute care 
patient census from an absolute limit of 15 patients to an annual 
average of 15 patients. The Department of Health and Human Services 
said that these modifications to CAH eligibility criteria would 
provide the needed flexibility for some additional facilities to 
consider conversion to CAH status, and emphasized the importance of 
maintaining financial incentives for efficiency as well as health and 
safety standards. 

www.gao.gov/cgi-bin/getrpt?GAO-03-948.

To view the full product, including the scope
and methodology, click on the link above.
For more information, contact A. Bruce Steinwald at (202) 512-7119.

[End of section]

Contents:

Letter:

Results in Brief:

Background:

Existing CAHs Had Fewer Beds and Patients and Lower Medicare Margins 
Than Potential CAHs:

Ban on CAHs Operating DPUs May Have Contributed to Diminished 
Availability of Services in Rural Areas:

Seasonal Variation in Patient Census Is Common and May Impede CAH 
Eligibility for Hospitals Near the CAH Limit:

Conclusions:

Matters for Congressional Consideration:

Agency Comments and Our Evaluation:

Appendix I: Scope and Methodology:

Appendix II: Comments from the Department of Health and Human Services:

Appendix III: GAO Contact and Staff Acknowledgments:

GAO Contact:

Acknowledgments:

Tables:

Table 1: Selected Characteristics of Existing CAHs Prior to Their 
Conversion and Potential CAHs, Fiscal Year 1999:

Table 2: Financial Performance of Existing CAHs Prior to Their 
Conversion and Potential CAHs, Fiscal Year 1999:

Table 3: Financial Performance of Potential CAHs with DPUs, Fiscal Year 
1999:

Table 4: Medicare Margins for DPUs of Potential CAHs, Fiscal Year 1999:

Table 5: Seasonal Increase in Average Acute Care Patient Census among 
Potential CAHs, by Bedsize, 1999:

Table 6: Potential CAHs with Estimated Seasonal Increases in Patient 
Census That Pushed Them over CAH Limit, 1999:

Table 7: Financial Performance of Potential CAHs with a Seasonal 
Increase in Patient Census That Pushed Them over CAH Limit, Fiscal Year 
1999:

Table 8: Potential CAHs with Seasonal Increase in Medicare Patients' 
Length of Stay That Pushed Them over the 4-day CAH Limit, 1999:

Table 9: Summary of Site Visits and Interviews:

Figures:

Figure 1: Major Eligibility Criteria for Critical Access Hospitals:

Figure 2: Number of Critical Access Hospitals through Fiscal Year 2002:

Figure 3: Location of the 681 Critical Access Hospitals, September 
2002:

Abbreviations:

BBA: Balanced Budget Act of 1997:

BIPA: Medicare, Medicaid, and SCHIP Benefits Improvement and Protection 
Act of 2000:

CAH: Critical Access Hospital:

CMS: Centers for Medicare & Medicaid Services:

DPU: distinct part unit:

EACH: essential access community hospital:

EMS: emergency medical services:

FORHP: Federal Office of Rural Health Policy:

HHS: Department of Health and Human Services:

HRSA: Health Resources and Services Administration:

MSA: metropolitan statistical area:

OMB: Office of Management and Budget:

PPS: prospective payment system:

RHFTP: rural hospital flexibility tracking project:

RPCH: rural primary care hospital:

SCHIP: State Children's Health Insurance Program:

TEFRA: Tax Equity and Fiscal Responsibility Act of 1982:

United States General Accounting Office:

Washington, DC 20548:

September 19, 2003:

Congressional Committees:

Medicare beneficiary access to hospital services in rural areas has 
been a source of concern for policymakers for many years. To bolster 
the financial stability of rural hospitals, the Congress approved 
several special payment provisions both before and after the 
implementation of the Medicare acute care inpatient prospective payment 
system (PPS)[Footnote 1] in 1983. These provisions enhanced Medicare 
payments to certain groups of rural hospitals, such as those that are 
the only source of care in their community; larger hospitals that serve 
as referral sites for rural physicians and community hospitals; and 
hospitals highly dependent on Medicare payments. Many rural hospitals 
have, however, continued to experience financial difficulties.

In the Balanced Budget Act of 1997 (BBA), the Congress established 
additional special payment provisions for Critical Access Hospitals 
(CAH).[Footnote 2] When designated as a CAH, a hospital generally 
receives payment for its reasonable costs of providing inpatient and 
outpatient services to Medicare beneficiaries, rather than being paid 
the PPS fixed amount for those services. Thus, the CAH designation 
provides higher payments to hospitals whose reasonable costs are higher 
than their PPS payment. The CAH program has grown steadily to 681 CAHs 
at the end of fiscal year 2002.[Footnote 3]

The CAH designation is targeted to small rural hospitals with a low 
patient census and short patient stays. Statutory provisions specifying 
criteria for CAHs do not specifically exclude facilities with distinct 
part units (DPUs) --separate sections certified to provide inpatient 
rehabilitation or psychiatric care. However, statutory and regulatory 
provisions concerning payment for such DPUs effectively require them to 
be operated by hospitals paid PPS rates. Thus, because CAHs are paid 
their reasonable costs, they are effectively banned from having DPUs. 
Some hospital officials have raised concerns that because CAHs cannot 
operate DPUs, it may be more difficult to ensure that rural 
beneficiaries have access to the kind of psychiatric and rehabilitation 
services these units provide, if hospitals choose to close their DPU as 
part of becoming a CAH. In addition, to be a CAH, a hospital must 
remain under CAH limits on the number of hospital beds ("bedsize") and 
average patient length of stay, and can have no more than 15 acute care 
patients on any given day. Some hospitals may have difficulty remaining 
under CAH limits during the entire year because they may experience 
fluctuations in patient demand due to seasonal tourism or illnesses, 
like influenza or pneumonia, that are more prevalent at certain times 
of the year.

In the Medicare, Medicaid, and SCHIP Benefits Improvement and 
Protection Act of 2000 (BIPA),[Footnote 4] the Congress directed us to 
study CAH eligibility requirements including with respect to 
limitations on average length of stay, bedsize, and DPU operations, and 
to make related recommendations on program changes. As agreed with the 
committees of jurisdiction, we have examined (1) the characteristics of 
a group of hospitals prior to their designation as CAHs compared to a 
group of small rural hospitals that have not become CAHs, but were in a 
position to consider doing so based on their low patient census, (2) 
the impact that the effective ban on CAHs operating DPUs has had on the 
availability of psychiatric and rehabilitation services in rural areas 
and on rural hospitals' decisions to seek CAH conversion, possible 
options for Medicare payment to DPUs and CAH eligibility requirements 
if CAHs were allowed to operate DPUs, and (3) the extent to which 
seasonal variation in patient census or length of stay prevents 
hospitals from being eligible for CAH status.

To address these objectives, we analyzed Medicare hospital cost 
reports[Footnote 5] from fiscal year 1999, the most recently available 
audited cost report data, and Medicare inpatient claims data for 1999. 
We defined 683 rural hospitals that had not converted to CAH status as 
of January 1, 2003, as "potential CAHs," based on their having an 
annual average patient census of no more than 15 acute care 
patients.[Footnote 6] We estimated how many of the 683 potential CAHs 
might be prevented from converting to CAH status because they operate a 
DPU or experience seasonal variation in their patient census or average 
length of stay. We also examined the characteristics of 620 hospitals 
that were not yet CAHs in fiscal year 1999 but have since converted to 
CAH status ("existing CAHs") and compared their preconversion 
characteristics to those of potential CAHs in fiscal year 1999. We 
evaluated how many potential CAHs and existing CAHs experienced 
financial losses under the Medicare PPS and likely could benefit from 
cost-based reimbursement. Since DPUs are paid under different payment 
methodologies from acute care hospitals, we evaluated how many of the 
DPUs operated by potential CAHs experienced financial gains or losses 
under the payment methodology that applied to them in fiscal year 1999 
as well as the possible impact if cost-based reimbursement were 
extended to DPUs operated by CAHs. We also evaluated how many of the 
potential CAHs with DPUs could have met CAH bedsize and length of stay 
criteria in fiscal year 1999 if their DPU beds and lengths of stay were 
counted towards the limits. We interviewed officials with the Centers 
for Medicare & Medicaid Services (CMS) and the Federal Office of Rural 
Health Policy (FORHP), which administers a grant program supporting 
CAHs. We interviewed administrators of 24 CAHs and potential CAHs 
across 10 states, and made site visits to 7 of these hospitals in 3 
states. We also interviewed state staff administering FORHP grants, and 
conducted an e-mail survey of state CAH coordinators.[Footnote 7] We 
did our work in accordance with generally accepted government auditing 
standards from April 2001 through August 2003. A detailed discussion of 
our scope and methodology is in appendix I.

Results in Brief:

Existing CAHs averaged six fewer beds and about three fewer patients 
per day prior to their conversion than did potential CAHs. Existing 
CAHs had to make smaller operational changes to qualify for CAH status, 
such as reducing bedsize or length of stay, than potential CAHs would 
have had to make if they had chosen to convert. While both groups had a 
median loss on Medicare inpatient and outpatient services, existing 
CAHs tended to experience bigger losses prior to their conversion (8.9 
percent) than did potential CAHs (0.8 percent). Existing CAHs also had 
a median loss on all sources of revenue of 0.3 percent before 
conversion, while potential CAHs had a median gain of 1.8 percent.

The effective ban on CAHs operating DPUs may have contributed to the 
disparity between urban and rural areas in the availability of 
inpatient psychiatric and rehabilitation services in fiscal year 1999. 
While one-quarter of Medicare beneficiaries reside in rural areas, only 
8 percent of rehabilitation hospital and DPU beds and 17 percent of 
psychiatric hospital and DPU beds were in rural areas in fiscal year 
1999. The subsequent closure of 25 DPUs by hospitals converting to CAH 
status may have exacerbated this difference in availability. Of the 93 
potential CAHs that operated a DPU, about half lost money on Medicare 
inpatient and outpatient services, giving them a financial incentive to 
convert. If, however, the other financial benefits associated with the 
DPU exceeded their losses under the PPS, these potential CAHs would 
have a countervailing incentive to stay under the PPS rather than close 
their DPU and convert. Some rural hospital administrators told us that, 
even when it was financially advantageous to seek CAH status, they were 
reluctant to close their DPU because it is needed to maintain access to 
psychiatric or rehabilitation services in the community they serve. 
While allowing hospitals to convert to CAH status and retain their DPU 
would alleviate this concern, extending cost-based reimbursement to 
DPUs operated by CAHs diminishes the incentives for efficiency that are 
inherent in PPS payments. If DPU patient stays and beds were counted 
against current CAH limits without any adjustment, nearly all potential 
CAHs with DPUs would have exceeded the limits in fiscal year 1999.

Among hospitals we studied, seasonal fluctuations in patient volume or 
length of stay were common, particularly during the winter. Such 
increases can be an obstacle for some hospitals considering CAH 
conversion if it causes them to exceed the CAH patient census limit of 
no more than 15 patients at any time or length of stay limit of an 
annual average of 4 days. We found 129 potential CAHs that likely would 
have been able to meet the CAH patient census limit in fiscal year 1999 
if not for the seasonal increase in their patient census. While these 
129 hospitals, as a group, averaged 13.2 patients per day over the 
entire year, their daily census increased to an estimated average of 
16.9 during their high season. If the CAH patient census limit were 
changed from an absolute limit of 15 acute care patients per day to an 
annual average of 15, these potential CAHs would have been able to 
remain under such a limit because they all had an annual average below 
15. It would not be necessary to increase the number of acute care beds 
CAHs are allowed to maintain in order to implement this relaxation of 
the patient census limit, since more than three-quarters of existing 
CAHs and potential CAHs have swing bed[Footnote 8]s which they could 
use to accommodate additional acute care patients beyond 15. About 40 
percent of these 129 potential CAHs, however, had positive Medicare 
margins, meaning they would have had little financial incentive to 
switch from the PPS to the cost-based payment CAHs receive. In contrast 
to the CAH patient census limit, the patient length-of-stay limit gives 
CAHs the flexibility to keep some acute care patients beyond the limit 
because it is an average.

We suggest that the Congress may wish to consider allowing hospitals 
with DPUs to convert to CAH status while making allowances for DPU 
beds, patients, and lengths-of-stay when determining CAH eligibility, 
and that CAH-affiliated DPUs be paid under the same formulas as other 
inpatient psychiatric or rehabilitation providers. We also suggest that 
the Congress may wish to consider changing the CAH limit on acute care 
patient census from an absolute limit of 15 acute care patients to an 
annual average of 15 in order to give CAHs greater flexibility in the 
management of their patient census.

In commenting on a draft of this report, the Department of Health and 
Human Services said that these modifications to CAH eligibility 
criteria would provide the needed flexibility for some additional 
facilities to consider conversion to CAH status. The department also 
emphasized several considerations, including maintaining financial 
incentives for efficiency as well as health and safety standards for 
DPUs, if they are allowed to be operated by a CAH.

Background:

CAHs are an outgrowth of the seven-state Essential Access Community 
Hospital/Rural Primary Care Hospital (EACH/RPCH) program established in 
1989. The BBA replaced the EACH/RPCH program with the state-
administered Rural Hospital Flexibility Program (the "Flex" Program), 
which includes the CAH designation. The reimbursement component of the 
Flex Program is the responsibility of CMS. The Flex Program also 
includes a grant program that supports hospital participation in the 
program as well as state emergency medical services systems (EMS), and 
is the responsibility of the FORHP within the Health Resources and 
Services Administration (HRSA).

The CAH program allows eligible rural hospitals to receive Medicare 
payments based on their reasonable costs rather than under a PPS. Under 
the Medicare inpatient PPS, hospitals are generally paid a fixed amount 
per patient discharge, providing an incentive for hospitals to control 
their costs to stay under this fixed amount because they can retain the 
difference between the PPS payment and their costs. Under cost-based 
reimbursement, hospitals are reimbursed for their reasonable costs, 
which does not provide the same incentive to control costs, but 
benefits hospitals whose Medicare costs exceed their PPS payments.

In addition to receiving cost-based payment for inpatient services to 
Medicare beneficiaries, CAHs receive cost-based payment from Medicare 
for skilled nursing care provided in their swing beds and for 
outpatient care.[Footnote 9] To become a CAH, a hospital must meet 
certain criteria with respect to its location, size, patient census, 
and patient length of stay (see figure 1). CAHs are also subject to 
different health and safety regulations, known as "conditions of 
participation," from other acute care hospitals.[Footnote 10]

Figure 1: Major Eligibility Criteria for Critical Access Hospitals:

[See PDF for image]

Note: The Office of Management and Budget (OMB) defines a metropolitan 
statistical area as a core area of at least 50,000 people together with 
adjacent areas having a high degree of economic and social integration 
with that core. Nonmetropolitan areas include all counties outside of a 
metropolitan area.

[A] The statutory provision outlining the certification exception does 
not specify the criteria for a hospital to be a necessary provider of 
services.

[End of figure]

Growth in the number of CAHs has been steady (see figure 2). There is a 
large concentration of CAHs in the central states, although 45 states 
had at least one CAH as of September, 2002 (see figure 3).[Footnote 11]

Figure 2: Number of Critical Access Hospitals through Fiscal Year 2002:

[See PDF for image]

[End of figure]

Figure 3: Location of the 681 Critical Access Hospitals, September 
2002:

[See PDF for image]

Note: Some Critical Access Hospitals may not be visible because they 
are obscured by state boundary lines.

[End of figure]

Since the inception of the CAH program, two factors have been important 
in increasing the number of hospitals qualifying for the designation. 
First, the length-of stay criterion was changed. Until 1999, patient 
stays at CAHs were limited to 4 days, after which patients would have 
to be transferred to another health care facility or discharged. In 
1999, the Congress relaxed the criterion to require that CAHs keep 
their annual average length of stay to no more than 4 days.[Footnote 
12] Second, states have widely utilized their authority to designate 
hospitals as "necessary providers," thereby exempting such hospitals 
from the otherwise applicable CAH criterion that they be more than 35 
miles from the nearest hospital. According to the Rural Hospital 
Flexibility Tracking Project (RHFTP), a little more than half of all 
CAHs had qualified for the CAH program through state designation rather 
than by meeting the mileage and location requirements, as of September 
2002.[Footnote 13]

Hospitals considering CAH conversion weigh numerous factors in their 
decision, including the impact on hospital finances and community 
reaction. Financial impact studies are commonly used to estimate how a 
hospital's reimbursement for services would change under CAH status. 
The financial impact may change as Medicare reimbursements to hospitals 
changes. For example, Medicare payment for hospital outpatient services 
shifted in 2000 from cost-based payment to a new PPS for outpatient 
services. Because CAHs are exempt from this PPS and continue to receive 
cost-based payment for outpatient services, potential CAHs may factor 
into their decision the impact of being paid reasonable costs, rather 
than a fixed PPS payment, for outpatient services. They may also 
consider the possible reaction from the community and from other health 
care providers to CAH conversion. Some communities have been reluctant 
to support a hospital's conversion because they perceive it as the last 
step before closure. In other cases, hospital officials reported that 
their physicians expressed concern that if a hospital became a CAH, 
they would occasionally be unable to admit patients to it because this 
would bring the CAH over the patient limit.

Distinct Part Units:

Clinical research has indicated better outcomes for patients who are 
appropriately treated in inpatient psychiatric or rehabilitation 
facilities, such as DPUs, rather than in general acute or post acute 
care settings. For example, one study concluded that elderly depressed 
patients who were treated in specialty psychiatric DPUs may have 
received better treatment for their depression than similar patients 
who were treated in general medical wards.[Footnote 14] Another study 
found better outcomes among stroke patients treated in rehabilitation 
facilities, such as DPUs, than those treated in nursing homes.[Footnote 
15]

As separate sections of hospitals, psychiatric and rehabilitation DPUs 
are subject to specific Medicare regulations regarding the types of 
patients they admit and the qualifications of their staff.[Footnote 16] 
Psychiatric DPUs may admit only patients whose condition requires 
inpatient hospital care and are described by a psychiatric principal 
diagnosis.[Footnote 17] Rehabilitation DPUs may treat only patients 
likely to benefit significantly from intensive therapy services, such 
as physical therapy, occupational therapy, or speech therapy. Both 
types of DPUs must provide a specified range of services and employ 
clinical staff with specialized training.

The Congress has required that CMS develop PPSs for both inpatient 
rehabilitation and inpatient psychiatric providers, including DPUs, to 
replace the payment methodology established by the Tax Equity and 
Fiscal Responsibility Act of 1982 (TEFRA). Under TEFRA, providers that 
had been exempted from the inpatient PPS, including inpatient 
rehabilitation and psychiatric hospitals and DPUs, receive the lesser 
of either their average cost per discharge or a provider-specific 
target amount.[Footnote 18] In 2002, a PPS was implemented for 
inpatient rehabilitation. Because a PPS for inpatient psychiatric 
providers has yet to be implemented, psychiatric DPUs continue to be 
paid under TEFRA.

The financial incentives associated with TEFRA payments differ from 
those associated with cost-based payment. Under TEFRA, Medicare 
payments are capped by a provider's target amount, giving hospitals an 
incentive to restrain costs. By contrast, hospitals such as CAHs, which 
are paid their reasonable costs, have less incentive to restrain costs 
because their payments can increase as their costs increase.

Existing CAHs Had Fewer Beds and Patients and Lower Medicare Margins 
Than Potential CAHs:

Most existing CAHs prior to their conversion had more beds in fiscal 
year 1999 than CAHs are allowed. Most were likely able to reduce their 
bedsize to 15 (or 25 with swing beds) to become CAHs without adjusting 
their patient volume because their average patient census of 4.8 was 
generally well below the CAH limit of 15 (see table 1). Likewise, 
potential CAHs, on average, exceeded CAH bedsize limits in fiscal year 
1999 and had a patient census well below 15. To meet the CAH limit, 
existing CAHs, on average, had to reduce their bedsize by less than 
potential CAHs would have had to if they had sought CAH status. Most 
existing CAHs prior to their conversion and potential CAHs were below 
the CAH length-of-stay limit.

Table 1: Selected Characteristics of Existing CAHs Prior to Their 
Conversion and Potential CAHs, Fiscal Year 1999:

Existing CAHs[A] (pre-conversion); Total: 620; Average daily census: 
4.8; Average length of stay (days): 3.5; Average bedsize: 30; 
Percentage with swing beds: 85; Percentage exceeding bedsize limit: 61; 
Percentage exceeding length-of-stay limit: 14.

Potential CAHs; Total: 683; Average daily census: 8.1; Average length 
of stay (days): 3.8; Average bedsize: 36; Percentage with swing beds: 
78; Percentage exceeding bedsize limit: 79; Percentage exceeding 
length-of-stay limit: 21.

Source: Fiscal year 1999 Medicare hospital cost reports.

[A] Statistics on existing CAHs include CAH conversions reported 
through January 1, 2003, but do not include CAHs that had already 
converted to CAH status in fiscal year 1999 or for which cost report 
data were not available for fiscal year 1999.

[End of table]

In fiscal year 1999, existing CAHs prior to their conversion generally 
experienced greater losses on their inpatient and outpatient Medicare 
services than did potential CAHs (see table 2), and therefore had 
greater financial incentive to seek conversion. A small majority, 55 
percent, of existing CAHs experienced losses on inpatient Medicare 
services, while more than 60 percent of potential CAHs experienced 
gains. Nearly all hospitals in both groups experienced losses on their 
Medicare outpatient services. Across all revenue sources, existing CAHs 
prior to their conversion experienced a 0.3 percent median loss, while 
potential CAHs experienced a 1.8 percent median gain.

Table 2: Financial Performance of Existing CAHs Prior to Their 
Conversion and Potential CAHs, Fiscal Year 1999:

Medicare inpatient; Median margin[A] (percent): Existing CAHs 
(preconversion) (n= 542): -2.4; Median margin[A] (percent): Potential 
CAHs (n= 683): 6.0; Hospitals with negative margins: Number 
(percent) of existing CAHs (preconversion): 296 (55); Hospitals with 
negative margins: Number (percent) of potential CAHs: 254 (37); 
Hospitals with positive margins: Number (percent) of existing 
CAHs (preconversion): 236 (44); Hospitals with positive margins: Number 
(percent) of potential CAHs: 419 (62).

Medicare outpatient; Median margin[A] (percent): Existing CAHs 
(preconversion) (n= 542): -21.0; Median margin[A] (percent): Potential 
CAHs (n= 683): -19.6; Hospitals with negative margins: Number 
(percent) of existing CAHs (preconversion): 523 (96); Hospitals with 
negative margins: Number (percent) of potential CAHs: 649 (96); 
Hospitals with positive margins: Number (percent) of existing 
CAHs (preconversion): 11 (2); Hospitals with positive margins: Number 
(percent) of potential CAHs: 14 (2).

Medicare inpatient and outpatient; Median margin[A] (percent): 
Existing CAHs (preconversion) (n= 542): -8.9; Median margin[A] 
(percent): Potential CAHs (n= 683): -0.8; Hospitals with 
negative margins: Number (percent) of existing CAHs (preconversion): 
398 (74); Hospitals with negative margins: Number (percent) of 
potential CAHs: 343 (51); Hospitals with positive margins: 
Number (percent) of existing CAHs (preconversion): 136 (25); Hospitals 
with positive margins: Number (percent) of potential CAHs: 322 (48).

Total facility (all payers); Median margin[A] (percent): Existing 
CAHs (preconversion) (n= 542): -0.3; Median margin[A] (percent): 
Potential CAHs (n= 683): 1.8; Hospitals with negative margins: 
Number (percent) of existing CAHs (preconversion): 277 (51); Hospitals 
with negative margins: Number (percent) of potential CAHs: 260 (38); 
Hospitals with positive margins: Number (percent) of existing 
CAHs (preconversion): 255 (47); Hospitals with positive margins: Number 
(percent) of potential CAHs: 406 (60).

Source: Fiscal year 1999 Medicare hospital cost reports.

Notes: For each of the four calculations of hospital margins, a small 
number of hospitals were excluded because of incomplete data or because 
their margins were extreme outliers. Three to 17 potential CAHs were 
excluded among the four calculations, and 2 to 10 existing CAHs were 
excluded. In addition, 78 existing CAHs do not have pre-conversion PPS 
margins statistics for fiscal year 1999 because they did not meet 
criteria used for the margins calculation. Results do not reflect the 
effects of the outpatient PPS, which was implemented in 2000.

[A] A margin is the difference between a hospital's revenue and costs, 
divided by its revenues.

[B] an on CAHs Operating DPUs May Have Contributed to Diminished 
Availability of Services in Rural Areas:

[End of table]

The effective ban on CAHs operating DPUs may have contributed to the 
disparity between urban and rural areas in the availability of 
inpatient psychiatric and rehabilitation services in fiscal year 1999. 
Twenty-five existing CAHs had to close their DPU as part of becoming 
CAHs. Of the 93 potential CAHs that operated a DPU (one-seventh of all 
potential CAHs), about half lost money on their Medicare inpatient and 
outpatient services, giving them a financial incentive to convert. If, 
however, the other financial benefits associated with the DPU exceeded 
their combined losses on inpatient and outpatient services, these 
potential CAHs would have had a countervailing incentive to stay under 
the PPS, rather than close their DPU and convert. Some rural hospital 
administrators told us that, even when it was financially advantageous 
to seek CAH status, they were reluctant to close their DPU because it 
was needed to maintain access to psychiatric or rehabilitation services 
in the community they serve. While allowing hospitals to convert to CAH 
status and retain their DPU would alleviate this concern, extending 
cost-based reimbursement to DPUs operated by CAHs diminishes the 
incentives for efficiency that are inherent in PPS payments. If DPU 
patient stays and beds were counted against current CAH limits without 
any adjustment, nearly all potential CAHs with DPUs would have exceeded 
either the bedsize or length of stay limit in fiscal year 1999.

CAH Eligibility Requirements Led to DPU Closures in Rural Communities:

The closure of 25 DPUs by hospitals that needed to relinquish their DPU 
as part of becoming a CAH may have contributed to the lower 
availability of inpatient psychiatric and rehabilitation services in 
rural areas. Inpatient psychiatric and rehabilitation providers are 
concentrated in urban areas, and DPUs are least common among smaller 
rural hospitals. Only 8 percent of rehabilitation beds and 17 percent 
of psychiatric beds were located in rural areas in fiscal year 1999, 
while about 25 percent of Medicare beneficiaries live in rural areas. 
In fiscal year 1999, 14 percent (93) of potential CAHs operated a 
DPU.[Footnote 19] By comparison, 37 percent of larger rural hospitals 
operated a DPU, and 53 percent of urban hospitals operated a DPU.

DPUs may be less common in rural areas due to the challenge of finding 
the resources needed to open a DPU. Hospital representatives and 
officials from rural health organizations said the difficulty in 
finding the specialized staff required to operate a DPU likely prevents 
many small rural hospitals from opening a DPU.

Many Potential CAHs Had No Financial Incentive to Close DPU:

In fiscal year 1999, nearly half the potential CAHs with a DPU 
experienced net gains on their combined inpatient and outpatient 
payments for Medicare services (see table 3). These potential CAHs had 
a financial incentive to continue under the PPS because this allowed 
them to continue receiving Medicare payments that were higher than 
their costs, rather than being paid only their reasonable costs as a 
CAH. The 47 potential CAHs with DPUs that experienced losses on their 
combined inpatient and outpatient Medicare payments would more likely 
have a financial incentive to seek CAH status.

Table 3: Financial Performance of Potential CAHs with DPUs, Fiscal Year 
1999:

Medicare inpatient; Median margin[A] in percentages (n = 93): 3.9; 
Number (percent) of potential CAHs with negative margins: 35 (38); 
Number (percent) of potential CAHs with positive margins: 56 (62).

Medicare outpatient; Median margin[A] in percentages (n = 93): -
17.5; Number (percent) of potential CAHs with negative margins: 88 
(97); Number (percent) of potential CAHs with positive margins: 0 (0).

Medicare inpatient and outpatient; Median margin[A] in percentages 
(n = 93): -1.1; Number (percent) of potential CAHs with negative 
margins: 47 (53); Number (percent) of potential CAHs with positive 
margins: 41 (47).

Total facility (all payers); Median margin[A] in percentages (n = 
93): 0.6; Number (percent) of potential CAHs with negative margins: 42 
(46); Number (percent) of potential CAHs with positive margins: 46 
(51).

Source: Fiscal year 1999 Medicare hospital cost reports.

Notes: For each of the four calculations of hospital margins, three or 
fewer hospitals were excluded because of incomplete data or because 
their margins were extreme outliers. Results do not reflect the effects 
of the outpatient PPS, which was implemented in 2000.

[A] A margin is the difference between a hospital's revenue and costs, 
divided by its revenues.

[End of table]

Potential CAHs with DPUs can compare the financial benefits of CAH 
conversion to the benefits of keeping their DPUs. Some that suffered 
losses on their inpatient and outpatient Medicare payments may lack a 
financial incentive to become a CAH because DPU revenues help offset 
those losses. If the projected increase in revenue under cost-based 
payment that a hospital would receive as a CAH is lower than the loss 
of revenue from having to close its DPU, the hospital may chose not to 
convert to CAH status. Just over half of the DPUs operated by potential 
CAHs had net gains on their Medicare payments (see table 4). A DPU may 
also provide a financial benefit to the hospital because it enables the 
hospital to spread its fixed costs over more services. Several 
administrators of potential CAHs with a DPU whom we interviewed stated 
that their DPU had contributed positively to the hospital's financial 
situation, providing a revenue source they would be reluctant to 
relinquish to gain CAH status.

Table 4: Medicare Margins for DPUs of Potential CAHs, Fiscal Year 1999:

DPUs of potential CAHs: Psychiatric; Number: 86; Median Medicare 
margin[A] (percent): 0.9; Number (percent) of DPUs with negative 
margins: 28 (33); Number (percent) of DPUs with positive margins: 47 
(55).

DPUs of potential CAHs: Rehabilitation; Number: 12; Median Medicare 
margin[A] (percent): 0.0; Number (percent) of DPUs with negative 
margins: 5 (42); Number (percent) of DPUs with positive margins: 5 
(42).

DPUs of potential CAHs: All; Number: 98; Median Medicare margin[A] 
(percent): 0.9; Number (percent) of DPUs with negative margins: 33 
(34); Number (percent) of DPUs with positive margins: 52 (53).

Source: Fiscal year 1999 Medicare hospital cost reports.

Notes: Because 5 of the potential CAHs had both a psychiatric and 
rehabilitation DPU, there are a total of 98 DPUs among the 93 potential 
CAHs. Margin information is not included for 11 psychiatric DPUs and 2 
rehabilitation DPUs due to incomplete data or the exclusion of units 
whose margins were at extreme outliers. Results do not reflect the 
effects of the inpatient rehabilitation PPS, which was implemented in 
January 2002.

[A] A margin is the difference between a hospital's revenue and costs, 
divided by its revenues.

[End of table]

Hospitals with DPUs Expressed Reluctance to Seek CAH Conversion If 
Access to Care Could Be Jeopardized:

While hospitals report that the projected financial impact is generally 
a key factor in the decision about whether to become a CAH,[Footnote 
20] some potential CAHs with DPUs also consider how local access to 
services would be affected if the DPU were closed. Some rural hospital 
administrators told us that, even when it was financially advantageous 
to seek CAH status, they were reluctant to close their DPU because they 
believed it was needed to maintain access to psychiatric or 
rehabilitation services in their community. Several hospital 
administrators and state health officials emphasized the need for 
patients to be near their family during treatment and the difficulty 
that some families would have if they had to travel outside their 
community to visit family members receiving treatment. Other 
administrators said that if their DPU closed, alternative sources for 
these services could be as much as 165 miles away. We were also told of 
difficulties in several states with referring psychiatric patients to 
hospitals because of a lack of available beds or because referral 
hospitals prefer not to take patients with significant behavioral 
issues or believe that psychiatric services should be provided in 
smaller community-based facilities.

Paying DPUs Associated with CAHs Reasonable Costs Would Reduce 
Incentives to Operate Efficiently:

If potential CAHs were allowed to convert to CAH status while retaining 
their DPU, the payment methodology applied to the DPUs could remain 
unchanged or could be shifted to cost-based payment along with the 
acute care hospital services. Hospitals that have been able to keep 
their DPU costs below their Medicare payments under the current 
methodologies (rehabilitation PPS for rehabilitation DPUs or TEFRA 
payment for psychiatric DPUs) would likely prefer no change because 
they can continue to keep their net gains; hospitals that have DPU 
costs exceeding their current Medicare payments would likely prefer 
cost-based payment.

If CAHs were allowed to have DPUs and the DPUs were shifted to cost-
based payment, diminished incentives for efficiency could result in 
higher costs per case. Under cost-based reimbursement, a hospital can 
receive higher payments if its costs increase. Under the rehabilitation 
PPS or TEFRA methodologies currently applied to DPUs, their payments 
cannot exceed a predetermined amount, creating pressure on them to 
operate efficiently.

Most Potential CAHs with DPUs Exceeded CAH Bedsize and Length-of-Stay 
Limits When DPUs' Patients Were Counted:

If CAHs were allowed to operate DPUs and the DPU beds and patients' 
length of stay were counted against the CAH limits, only one of the 93 
potential CAHs with DPUs would have met both limits in fiscal year 
1999. Among these 93 potential CAHs, the median bedsize of psychiatric 
DPUs was 11 and the median bedsize of rehabilitation DPUs was 13. If 
their DPU beds, acute care beds and swing beds were added together, 88 
would have exceeded the CAH bedsize limit. Similarly, psychiatric 
inpatient stays at these potential CAHs averaged 11.8 days, and 
rehabilitation DPU inpatient stays averaged 13.7 days, both 
significantly longer than the CAH limit of an annual average of 4 days. 
About eighty percent of the potential CAHs with DPUs exceeded the CAH 
length-of-stay limit when the DPU length of stay and acute care length 
of stay were counted together.

Seasonal Variation in Patient Census Is Common and May Impede CAH 
Eligibility for Hospitals Near the CAH Limit:

Hospitals we studied commonly experienced at least a small seasonal 
increase in their patient census, most often during winter. Such 
increases can be an obstacle for some hospitals considering CAH 
conversion if it causes them to exceed the CAH patient census limit of 
no more than 15 patients at any time, or length of stay limit of an 
average of 4 days. We found 129 potential CAHs that likely would have 
been able to meet the patient census limit of 15 in 1999 if not for the 
seasonal increase in their patient census. About 40 percent of these 
129 potential CAHs, however, had positive Medicare margins, meaning 
they would have little financial incentive to switch from the PPS to 
CAH cost-based payment. In contrast to the CAH patient census limit, 
the patient length of stay limit is an annual average, and gives CAHs 
the flexibility to occasionally keep some acute care patients longer 
than 4 days as long as the average remains below 4.

Most Hospitals Experience Higher Patient Census during Winter:

Among hospitals we studied, seasonal fluctuations in patient volume 
were common. In 1999, over 80 percent of potential CAHs had an increase 
in their patient census averaging at least one additional patient per 
day during a 3-month period. To assess whether this finding is 
consistent with small and medium-size hospitals in general, we analyzed 
Medicare patient claims for 2,139 hospitals with an average census of 
no more than 50 patients and found that about 90 percent had an 
increase in their patient census averaging at least one additional 
patient per day during a 3-month period of 1999.

For nearly three-quarters of potential CAHs, the patient volume 
increase in 1999 occurred during the winter. This pattern was 
consistent with reports from hospital officials that their patient 
census often increased during the winter due to a higher incidence of 
flu and pneumonia. The seasonal increase in patient census was greater 
for larger potential CAHs. For example, potential CAHs with 41 to 60 
beds averaged 2.8 patients more per day during their peak 3-month 
period, while potential CAHs with no more than 15 beds averaged 1.3 
patients more per day during this period (see table 5).

Table 5: Seasonal Increase in Average Acute Care Patient Census among 
Potential CAHs, by Bedsize, 1999:

Bedsize: 1-15; Number of potential CAHs: 45; Estimated 3-month high 
season average: 3.5; Patient census: Annual average: 2.2; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 0; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 0.

Bedsize: 16-25; Number of potential CAHs: 124; Estimated 3-month high 
season average: 7.2; Patient census: Annual average: 5.5; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 3; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 0.

Bedsize: 26-40; Number of potential CAHs: 284; Estimated 3-month high 
season average: 10.5; Patient census: Annual average: 8.3; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 40; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 2.

Bedsize: 41-60; Number of potential CAHs: 195; Estimated 3-month high 
season average: 13.2; Patient census: Annual average: 10.4; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 72; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 3.

Bedsize: >60; Number of potential CAHs: 35; Estimated 3-month high 
season average: 13.3; Patient census: Annual average: 10.6; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 14; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 0.

Bedsize: Total; Number of potential CAHs: 683; Estimated 3-month high 
season average: 10.4; Patient census: Annual average: 8.1; Annual 
average: Potential CAHs with a high season average census 
exceeding thresholds: Exceeded 15 acute care patients: 129; Potential 
CAHs with a high season average census exceeding thresholds: Exceeded 
20 acute care patients: 5.

[End of table]

Source: GAO analysis of Medicare inpatient claims.

Note: Because this analysis was based on hospitalizations of Medicare 
patients, rather than all patients, we used the hospital's annual ratio 
of all patients to Medicare patients to estimate each hospital's total 
patient census by season. (See app. I for a description of our 
methodology.):

Because CAH Patient Census Limit Is Absolute, Potential CAHs Near the 
Limit May Have Difficulty Staying under It:

There were 129 potential CAHs that had at least a slight seasonal 
increase in 1999 that pushed them over the CAH limit of 15 acute care 
patients per day for some portion of the year. These 129 potential CAHs 
had an average daily patient census of about 13.2, with none having an 
annual average above 15. But these potential CAHs had an estimated 
average acute care patient census of 16.9 during their peak season (see 
table 6), nearly two patients per day higher than the CAH limit.

Table 6: Potential CAHs with Estimated Seasonal Increases in Patient 
Census That Pushed Them over CAH Limit, 1999:

Potential CAHs with a seasonal increase in patient census: Estimated 
average increase in patients per day during seasonal increase; 129: 
3.7.

Potential CAHs with a seasonal increase in patient census: Total annual 
average daily census; 129: 13.2.

Potential CAHs with a seasonal increase in patient census: Estimated 
total average daily census during seasonal increase; 129: 16.9.

Source: GAO analysis of Medicare inpatient claims.

Note: Because this analysis was based on hospitalizations of Medicare 
patients, rather than all patients, we used the hospital's annual ratio 
of all patients to Medicare patients to approximate each hospital's 
total patient census by season.

[End of table]

Significant Number of Potential CAHs with Seasonal Increase in Patient 
Census Have No Financial Incentive to Become CAHs:

About 40 percent of the 129 potential CAHs with seasonal increases that 
pushed them over the CAH patient census limit had net gains on combined 
inpatient and outpatient payments for Medicare services (see table 7). 
These potential CAHs would have a financial incentive to remain under 
the PPS, where they can keep the difference between payments and their 
costs, rather than convert to CAH status, where they would be paid only 
their reasonable costs.

Table 7: Financial Performance of Potential CAHs with a Seasonal 
Increase in Patient Census That Pushed Them over CAH Limit, Fiscal Year 
1999:

Medicare inpatient; Median margins[A] in percent (n=129): 2.4; 
Number (percent) of hospitals with negative margins: 57 (44); Number 
(percent) of hospitals with positive margins: 72 (56).

Medicare outpatient; Median margins[A] in percent (n=129): -19.3; 
Number (percent) of hospitals with negative margins: 122 (95); Number 
(percent) of hospitals with positive margins: 5 (4).

Medicare inpatient and outpatient; Median margins[A] in percent 
(n=129): -2.7; Number (percent) of hospitals with negative margins: 75 
(59); Number (percent) of hospitals with positive margins: 52 (41).

Total facility (all payers); Median margins[A] in percent (n=129): 
2.5; Number (percent) of hospitals with negative margins: 47 (36); 
Number (percent) of hospitals with positive margins: 82 (64).

Source: Fiscal year 1999 Medicare hospital cost reports.

Note: For each of the four calculations of hospital margins, two or 
fewer hospitals were excluded due to incomplete data or because their 
margins were extreme outliers. Results do not reflect the effects of 
the outpatient PPS, which was implemented in 2000.

[A] A margin is the difference between a hospital's revenue and costs, 
divided by its revenues.

[End of table]

Remaining under Length-of-Stay Limit Is Manageable Because It Is an 
Average:

Seasonal fluctuations in patient length of stay were also common among 
hospitals we studied. Among the 2,139 hospitals with a patient census 
of no more than 50, about three-fourths had a seasonal increase in 
their Medicare length of stay of at least one-third of a day. Sixty-
five potential CAHs had an average Medicare patient length of stay 
below 4 days (3.8 days) for 9 months of fiscal year 1999, but their 
average length of stay during the other 3 months was high enough (4.8 
days) to push their Medicare annual average over the 4-day CAH limit, 
to 4.2 (see table 9). Among the 620 existing CAHs, 60 had an annual 
average length of stay greater than 4.2 days before they converted. 
These existing CAHs have been subject to the 4-day limit since they 
became CAHs, suggesting that potential CAHs with an annual average of 
4.2 days would be able to remain under the limit if they converted.

Table 8: Potential CAHs with Seasonal Increase in Medicare Patients' 
Length of Stay That Pushed Them over the 4-day CAH Limit, 1999:

Potential CAHs with increase pushing them over the limit: 65.

Average Medicare length of stay during 9-month period (days): 3.8.

Average Medicare length of stay during 3-month seasonal increase 
(days): 4.8.

Annual average Medicare patient length of stay (days): 4.2.

Source: GAO analysis of Medicare inpatient claims.

[End of table]

The relaxation of the CAH length-of-stay limit in 1999 from an absolute 
limit of 4 days to an annual average of 4 days has made it easier to 
meet because hospitals are able to keep some patients for a longer 
period, as long as the hospital's annual average remains below the 
limit. Examples of how a hospital can manage its length of stay during 
the course of a year include discharging longer-stay patients to 
skilled nursing care in the hospital's swing beds or transferring them 
to referral facilities. Administrative staff of one rural hospital 
considering CAH conversion reported that its average length of stay 
dropped over 3 years from 5.3 to 3.7 days. The decline, in their 
opinion, was due to factors such as utilization review, emphasis on 
community-based services, increased use of post-acute care, and 
education of staff.

Conclusions:

The ineligibility of hospitals with DPUs or with seasonal increases in 
patient stays that push them over a CAH limit impedes CAH conversion 
for some hospitals that might otherwise be able to become CAHs. The 
ineligibility of hospitals with DPUs may result in the loss of some 
rural DPU services if potential CAHs close their DPU as part of 
becoming a CAH. Hospitals seeking CAH status may occasionally need to 
transfer patients to stay under the CAH limit of 15 acute care patients 
if they otherwise periodically exceed 15 due to seasonal increases.

Since inpatient rehabilitation and psychiatric services are less 
prevalent in rural areas, enabling rural DPUs to continue operating can 
help preserve the availability of services. In fiscal year 1999, 25 
hospitals ceased operation of their DPU as part of becoming a CAH, and 
beneficiaries in the affected communities have lost a local provider of 
these services. Any of the 93 potential CAHs with a DPU may also 
relinquish it to convert to CAH status if hospital officials conclude 
that shifting to CAHs' cost-based payment is the best way to maximize 
revenue and preserve the other services they offer. Among these 93 
potential CAHs, 47 had net losses on Medicare services in fiscal year 
1999, indicating they might benefit from CAH conversion.

Because it is generally difficult for rural hospitals to staff and 
maintain a DPU, it is unlikely that allowing CAHs to operate DPUs would 
result in many existing CAHs opening new DPUs, as long as the DPUs 
continue to be paid under PPS and TEFRA. If DPUs operated by CAHs were 
paid their reasonable costs, however, DPUs would have less financial 
incentive to operate efficiently. The experience of rural DPUs under 
the new rehabilitation PPS or the forthcoming psychiatric PPS may 
provide information about whether Medicare payments under these PPSs 
will be appropriate for rural DPUs.

If CAHs were allowed to operate DPUs, they would generally not be able 
to stay under the limits on bedsize, length of stay, and patient census 
if the DPU beds and patient stays were counted against current limits. 
Relaxing the limits for CAHs with DPUs or not counting the DPU beds or 
patient stays for purposes of determining whether the CAH meets the 
limits would enable some or all potential CAHs with DPUs to convert to 
CAH status.

Relaxing the CAH census limit to an annual average of 15 acute care 
patients rather than an absolute limit of 15 would accommodate the 129 
potential CAHs that exceeded the current limit due to a seasonal 
increase as they all had an annual average census below 15. Such a 
change would provide CAHs greater flexibility in their management of 
patient census, just as the relaxation of the length of stay limit in 
1999 to an annual average of 4 days provided CAHs greater flexibility 
in their management of patients' length of stay. CAHs would then not be 
required to transfer patients whenever they would otherwise exceed the 
limit, as long as they manage their census so that their annual average 
is below the limit. It would not be necessary to increase the number of 
acute care beds CAHs are allowed to maintain in order to implement this 
relaxation of the patient census limit. More than three-quarters of 
existing CAHs and potential CAHs have swing beds which they could use 
to accommodate additional acute care patients beyond 15, since the 
limit is 25 beds for CAHs with acute and swing beds. Among the 129 
potential CAHs, about 60 percent had net losses on Medicare services in 
fiscal year 1999, indicating they might benefit from CAH conversion, 
while the 40 percent with net gains would less likely have the 
financial incentive to convert.

Many potential CAHs that decide to seek CAH status would need to adjust 
their bedsize or length of stay to become CAHs, just as about 60 
percent of existing CAHs needed to reduce their bedsize and 14 percent 
needed to reduce their length of stay in fiscal year 1999. CAH status 
and the cost-based reimbursement that goes with it have proven to be 
attractive enough that hospitals have been willing to make the 
necessary adjustments.

Matters for Congressional Consideration:

We suggest that the Congress may wish to consider allowing hospitals 
with DPUs to convert to CAH status while making allowances for DPU 
beds, patients, and lengths-of-stay when determining CAH eligibility, 
and that CAH-affiliated DPUs be paid under the same formulas as other 
inpatient psychiatric or rehabilitation providers. We also suggest that 
the Congress may wish to consider changing the CAH limit on acute care 
patient census from an absolute limit of 15 acute care patients to an 
annual average of 15 to give CAHs greater flexibility in the management 
of their patient census.

Agency Comments and Our Evaluation:

In commenting on a draft of this report, the Department of Health and 
Human Services said that these modifications to CAH eligibility 
criteria would provide the needed flexibility for some additional 
facilities to consider conversion to CAH status. It stated that the key 
is to provide the proper incentives for facilities to convert when they 
meet the statutory requirements and when it is the right thing to do 
for a particular community.

HHS suggested that we further emphasize several issues regarding CAH 
eligibility and payment. (See app. II for the full text of HHS's 
written comments.) HHS pointed out that it is important to consider 
that the financial incentives for efficiency under TEFRA payments to 
psychiatric DPUs or rehabilitation PPS payments to rehabilitation DPUs 
would not be preserved if CAHs were able to claim cost-based 
reimbursement for their DPUs, and therefore HHS said such DPUs should 
continue to be paid separately from the CAH. The department also 
emphasized that CAHs are required to meet more limited health and 
safety standards compared to other acute care hospitals and raised 
concerns that any DPUs operated by CAHs would likewise be subject to 
more limited health and safety standards unless the Congress acted to 
maintain standards currently in place for DPUs. Furthermore, HHS 
suggested that we analyze the extent to which inpatient rehabilitation 
and psychiatric services are available to rural residents beyond their 
local hospitals in order to determine whether such services are more or 
less accessible to rural residents than other specialty services. The 
department expressed concern that non-CAH hospitals that are within 
close proximity to CAHs may perceive unfair treatment if such CAHs are 
allowed to operate DPUs. Finally, in commenting on the relaxation of 
the CAH acute care patient census limit to an annual average of 15, HHS 
proposed that we consider suggesting corresponding changes to the CAH 
bedsize limit.

As we noted in the draft report, incentives for efficiency that exist 
under the current payment systems for inpatient psychiatric and 
rehabilitation services would not be preserved under cost-based 
reimbursement. We revised the matters for congressional consideration 
to specifically suggest that CAH-affiliated DPUs be paid under the same 
formulas as other inpatient psychiatric or rehabilitation providers. We 
also agree with HHS that there are differences in conditions of 
participation between hospitals and CAHs and that appropriate health 
and safety standards should be maintained for CAH-affiliated DPUs, and 
we modified the report accordingly. However, determining what health 
and safety standards should be applied to the DPUs of CAHs was beyond 
the scope of this report. While we noted differences in the 
availability of inpatient rehabilitation and psychiatric services 
between rural and urban areas in the draft report, measuring in detail 
the level of access rural residents have to various specialty services 
was beyond the scope of this report. We believe that the close 
proximity of non-CAH hospitals to CAHs with DPUs would only present a 
fairness issue if such CAH-affiliated DPUs are paid cost-based 
reimbursement or if they are subject to less stringent regulations. If 
such DPUs operate under the same payment methodologies and regulations 
as other DPUs, this would not be an issue. A detailed examination of 
the levels of competition between CAH and non-CAH hospitals was beyond 
the scope of this report. We clarified in the report that we are not 
suggesting any changes to the CAH limits of 15 acute care beds or 25 
total beds when swing beds are included, since most CAHs have swing 
beds that could be used when the acute care patient census exceeds 15. 
HHS also provided technical comments, which we have incorporated as 
appropriate.

We are sending copies of this report to the Secretary of Health and 
Human Services and interested congressional committees. We will also 
make copies available to others upon request. In addition this report 
is available at no charge on the GAO Web site at http://www.gao.gov.

If you have any questions about this report, please call me at (202) 
512-7119. Other major contributors are listed in appendix III.

A. Bruce Steinwald 
Director, Health Care - Economic and Payment Issues:

Signed by A. Bruce Steinwald: 

List of Committees:

The Honorable Charles E. Grassley, Jr. 
Chairman 
The Honorable Max Baucus 
Ranking Minority Member 
Committee on Finance 
United States Senate:

The Honorable Bill Thomas 
Chairman 
The Honorable Charles B. Rangel 
Ranking Minority Member 
Committee on Ways and Means 
House of Representatives:

The Honorable W.J. "Billy" Tauzin 
Chairman 
The Honorable John D. Dingell 
Ranking Minority Member 
Committee on Energy and Commerce 
House of Representatives:

[End of section]

Appendix I: Scope and Methodology:

To identify potential Critical Access Hospitals (CAHs), we selected 
rural, non-CAH hospitals with an annual average patient census of 15 or 
fewer acute care patients, based on patient census figures reported in 
fiscal year 1999 Medicare cost reports.[Footnote 21] Any hospital that 
had converted to CAH status as of January 1, 2003 was excluded from the 
list of potential CAHs. We defined potential CAHs based on their annual 
average census, rather than by bedsize, because average census better 
represents the bed capacity a hospital would need to support its 
current demand for services. If potential CAHs have more beds than 
necessary to meet their patient demand, they can decertify beds in 
order to meet CAH eligibility criteria. Our inclusion of hospitals with 
an average census up to 15 is likely a high estimate of the number of 
potential CAHs. Hospitals with an annual average of 15 acute care 
patients per day may need more than 15 acute care beds to accommodate 
variations in their patient census that periodically cause them to 
exceed 15.

From the resulting list of 683 potential CAHs, we identified hospitals 
operating rehabilitation or psychiatric distinct part units (DPUs), as 
well as those with seasonal variation in patient census or length of 
stay that caused them to exceed CAH limits. For our analysis of 
seasonal variation in patient census, we used the volume of Medicare 
patients as a proxy for total patient volume because national data on 
day-to-day variation inpatient admissions were only available for 
Medicare patients. We calculated from hospital cost reports the 
Medicare share of each hospital's total acute care patient volume, and 
for each hospital multiplied the CAH limit of 15 acute care patients by 
its Medicare share in order to define a comparable limit based on 
Medicare patient stays. For example, if a hospital's Medicare share of 
patients was 67 percent in fiscal year 1999, then a Medicare census of 
about 10 acute care patients was considered to be equivalent to a total 
census of 15 acute care patients. Using Medicare inpatient claims data 
for 1999, we defined seasonal variation in daily census as having a 
period of 3 consecutive months with an average census greater than the 
estimated limit, with the remaining nine months' census averaging below 
the estimated limit. We identified 129 potential CAHs as having a 
seasonal increase that caused them to exceed the limit for a 3-month 
period, while staying under for the remaining 9 months. To estimate 
total patient census for these hospitals for each season, we multiplied 
their Medicare census by their ratio of total patients to Medicare 
patients. We defined seasonal variation in length of stay as having a 
period of 3 consecutive months with an average Medicare length of stay 
greater than 4 days with an average for the remaining 9 months of less 
than 4 days. In addition, we identified only those hospitals for which 
their seasonal increase in length of stay caused them to exceed the CAH 
limit of an average of 4 days.

Because we used Medicare utilization to estimate hospitals' total 
patient utilization for each season, the hospitals we identified as 
having seasonal variation that causes them to exceed CAH limits may not 
be precisely the same set of hospitals that would have been identified 
if claims data for all patients had been available. Rather, our 
analysis provides an estimate of the proportion of potential CAHs so 
affected. By broadly defining seasonal variation, we captured all the 
hospitals that have census or length of stay fluctuations around the 
CAH limits, regardless of the magnitude of the fluctuation.

We calculated Medicare margins and total facility margins using fiscal 
year 1999 Medicare hospital cost report data, using methods developed 
jointly by the Centers for Medicare & Medicare Services (CMS) Office of 
the Actuary and the Medicare Payment Advisory Commission. The reported 
median margins are hospital-weighted, meaning that each hospital counts 
equally in the calculation of the median, regardless of differences in 
hospital size or total revenues.

We interviewed officials at CMS, at the Federal Office of Rural Health 
Policy, and state staff administering Flex Program grants in 11 states 
(table 9). To get a comprehensive perspective of how current and 
potential CAHs are affected by CAH eligibility criteria, we also 
conducted an e-mail survey of all state CAH coordinators, and received 
e-mail responses or directly interviewed 42 out of 47. In addition, we 
interviewed researchers with the Rural Hospital Flexibility Tracking 
Project, an evaluation of the Flex Program funded by the FORHP. We 
interviewed administrators of 24 CAHs and potential CAHs across 10 
states, and made site visits to 7 of these hospitals in 3 states. These 
10 states were selected based on having significant CAH enrollment or 
potential enrollment, and representing different regions of the 
country.

Table 9: Summary of Site Visits and Interviews:

State: Alabama; Interviewed state staff administering Flex Program 
grants: No; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 1.

State: Indiana; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: Yes; Interviewed hospital 
administrators: Yes; Number of administrators of existing and 
potential CAHs interviewed: 2.

State: Iowa; Interviewed state staff administering Flex Program grants: 
Yes; Hospital site visit: No; Interviewed hospital administrators: 
Yes; Number of administrators of existing and potential CAHs 
interviewed: 2.

State: Kansas; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 2.

State: Mississippi; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: Yes; Interviewed hospital 
administrators: Yes; Number of administrators of existing and 
potential CAHs interviewed: 5.

State: Montana; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 1.

State: Nebraska; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: No; Number of administrators of existing and 
potential CAHs interviewed: No.

State: North Carolina; Interviewed state staff administering Flex 
Program grants: Yes; Hospital site visit: Yes; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 2.

State: South Dakota; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: No; Number of administrators of existing and 
potential CAHs interviewed: No.

State: Texas; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 2.

State: Vermont; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 1.

State: Washington; Interviewed state staff administering Flex Program 
grants: Yes; Hospital site visit: No; Interviewed hospital 
administrators: Yes; Number of administrators of existing and potential 
CAHs interviewed: 6.

State: Total; Interviewed state staff administering Flex Program 
grants: 11; Hospital site visit: 3; Interviewed hospital 
administrators: 10; Number of administrators of existing and potential 
CAHs interviewed: 24.

Source: GAO.

[End of table]

[End of section]

Appendix II: Comments from the Department of Health and Human Services:

DEPARTMENT OF HEALTH & HUMAN SERVICES	Office of Inspector General:

AUG 27 2003:

Mr. A. Bruce Steinwald:

Director, Health Care - Economic and Payment Issues:

United States General Accounting Office Washington, D.C. 20548:

Dear Mr. Steinwald:

Enclosed are the Department's comments on your draft report entitled, 
"Medicare: Modest Eligibility Expansion for Critical Access Hospital 
Program Should Be Considered." The comments represent the tentative 
position of the Department and are subject to reevaluation when the 
final version of this report is received.

The Department also provided several technical comments directly to 
your staff.

The Department appreciates the opportunity to comment on this draft 
report before its publication.

Sincerely,

Signed for: 

Dara Corrigan:

Acting Principal Deputy Inspector General:

Enclosure:

The Office of Inspector General (OIG) is transmitting the Department's 
response to this draft report in our capacity as the Department's 
designated focal point and coordinator for General Accounting Office 
reports. OIG has not conducted an independent assessment of these 
comments and therefore expresses no opinion on them.

Comments of the Department of Health and Human Services on the General 
Accounting Office's Draft Report, "Medicare: Modest Eligibility 
Expansion for Critical Access Hospital Program Should Be Considered" 
(GAO-03-948):

The Department of Health and Human Services (Department) appreciates 
the opportunity to review the General Accounting Office's (GAO) draft 
report entitled, Medicare: Modest Eligibility Expansion for Critical 
Access Hospital Program Should Be Considered. GAO suggests that 
Congress may wish to consider allowing hospitals with distinct part 
units (DPUs) to convert to critical access hospital (CAH) status. GAO 
also suggests that Congress may wish to consider changing the CAH limit 
on acute care patient census from an absolute limit of 15 patients to 
an annual average of 15 patients.

The Department commends GAO for conducting a thorough review of an 
issue that has raised concerns since the creation of the CAH 
designation in 1997. The report shows that GAO investigators understand 
the unique role played by CAHs in serving as key access points in 
isolated rural communities and the need to balance access to essential 
services with program integrity concerns for the Medicare program. The 
Department believes the DPUs should continue to be paid separately from 
the CAH, and therefore remain either under the rehabilitation 
prospective payment system (PPS) or the soon-to-be-implemented 
psychiatric hospital PPS.

The Department also agrees that the minor modifications recommended by 
GAO will provide needed flexibility for some additional facilities to 
consider conversion to CAH status. The key is to provide the proper 
incentives for facilities to convert when they meet the statutory 
requirements and when it is the right thing to do for a particular 
community.

General Comments:

The Department has continued to monitor the appropriateness of current 
Medicare policy toward rural providers, including critical access 
hospitals (CAHs). Where appropriate, and when permitted by current law, 
the Department has implemented administrative changes to reduce 
provider burden and increase provider payments. For example, last year, 
we issued an instruction waiving a previous requirement that CAHs 
complete the Minimum Data Set (MDS) patient assessment for swing bed 
patients. We realized that the collected MDS data was not being used by 
the Department, and therefore acted to eliminate a costly 
administrative burden on rural providers. We appreciate your 
consideration of program improvements that would require a change in 
statute.

Throughout the report, CAHs are described as facilities that differ 
from other hospitals only in their payment method, bed size, and length 
of stay. The report does not mention that CAHs are a separate provider 
type from hospitals under the Medicare law, and have their own health 
and safety standards, known as conditions of participation (COPS). The 
CAHs, in keeping with their original status as small, limited service 
providers, are required to meet only the much more limited COPS. One 
possible statutory change not:

described in the report would be to link any change allowing CAHs to 
open specialty facilities with the adoption of more stringent rules to 
protect the health and safety of patients in such specialized 
facilities. This issue is described in more detail in the section on 
patient health and safety.

We are providing the following observations on the issues the report 
raises:

Impact of Cost Reimbursement for Specialty Units:

The report recommends that Congress consider allowing CAHs to operate 
psychiatric and rehabilitation DPUs and seems to assume that these 
units would continue to be paid based on the Tax Equity and Fiscal 
Responsibility Act of 1982 (TEFRA) payment policies and the inpatient 
rehabilitation facility (IRF) PPS. As the report notes, the TEFRA 
limits on payment to psychiatric units and the IRF PPS both include 
incentives for efficient operation. These incentives would not be 
preserved if CAHs were able to claim cost reimbursement for specialty 
units. This factor should be considered in deciding whether to allow 
cost reimbursement for specialty units of CAHs.

Current law permits CAHs which provide only acute services to 
inpatients to maintain no more than 15 acute beds, while CABs with 
swing-bed agreements may have up to 25 beds, as long as no more than 15 
are used at any one time for acute inpatient care. The GAO recommends 
changing the CAH acute care census limit from an absolute 15 patients 
to an annual average of 15 patients. The GAO may want to consider 
whether to recommend an appropriate adjustment to the bed count to 
accommodate an average of 15 patients.

Health and Safety of Patients:

Throughout the report, CAHs are described as facilities that differ 
from other hospitals only in their payment method, bed size, and length 
of stay. The report does not mention that CAHs are a separate provider 
type from hospitals under the Medicare law, and have their own health 
and safety standards, known as conditions of participation (COPs).

Medicare hospitals, including those operating PPS-excluded units, are 
subject to COPs including patient rights and discharge planning, that 
can be especially important to psychiatric and rehabilitation patients. 
The CAHs, in keeping with their original status as small, limited 
service providers, are subject to the much more limited COPS. The PPS-
excluded hospital units also have to meet specific exclusion 
requirements including requirements for psychiatric medical direction, 
medical direction of rehabilitation services, and provision of 
specialized psychiatric or rehabilitation nursing. These special 
staffing requirements do not apply to CAHs.

It has been documented that it is difficult for rural hospitals to find 
and maintain specialized staff to operate a DPU. We believe this 
difficulty would extend to DPUs in CAHs and would eventually affect 
patient safety. We suggest that the GAO consider:

whether additional health and safety COPS be added to the existing CAH 
regulations to provide the same level of protection that exists for 
patients served in DPUs of hospitals.

If Congress wishes to allow CAHs to open specialty units, it may also 
want to consider removing the hospital/CAH distinction in connection 
with COPS, so that hospital COPs would apply to CAHs. Congress may also 
want to consider requiring that CAH specialty units meet the same 
exclusion criteria now applicable to PPS hospitals.

Availability of Specialty Care in Rural Areas:

The report expresses concern that current CAH requirements may lead to 
closure of some PPS-excluded psychiatric or rehabilitation units, but 
does not indicate the extent to which such care might be available from 
other sources, including PPS-excluded hospitals and units in nearby 
communities. The GAO may want to consider investigating the volume of 
services provided by the DPUs and the distance to, or capacity of, the 
next closest facility providing these services.	Residents of rural areas 
may also travel voluntarily to larger but more distant facilities to 
obtain psychiatric or rehabilitation services. Analysis of such factors 
would help determine whether psychiatric and rehabilitation care is 
more or less accessible to rural residents than other types of 
specialty care.

Competition with Full-Service Hospitals:

Because of the extent to which States have given "necessary provider" 
status to CAHs, many CAHs are far closer to other hospitals than 
envisioned by the mileage limit in the CAH statute. Allowing CAHs to 
develop specialty units may result in rural hospitals that have not 
converted to CAH status claiming that CMS is creating an uneven playing 
field.

[End of section]

Appendix III: GAO Contact and Staff Acknowledgments:

GAO Contact:

A. Bruce Steinwald, (202) 512-7119:

Acknowledgments:

Jean Chung, Chris DeMars, Michael Rose, Margaret Smith, and Kara Sokol 
made key contributions to this report.


FOOTNOTES

[1] Under the PPS, hospitals are paid a fixed amount for each hospital 
discharge, based on national average costs, adjusted for such factors 
as local wage costs and type of illness treated. 

[2] Pub. L. No. 105-33, § 4201(c), 111 Stat. 251, 373-374 (1997).

[3] CAH enrollment figures were provided by the Rural Hospital 
Flexibility Tracking Project (RHFTP), a federally funded national 
evaluation by a consortium of five rural health research centers and 
the Rural Policy Research Institute. 

[4] Pub. L. No. 106-554, App. F, § 206, 114 Stat. 2763A-463, 2763A-483 
(2000).

[5] The Medicare cost report is the financial document that hospitals 
are required to submit annually to the Centers for Medicare & Medicaid 
Services (CMS). The reports include information about Medicare 
inpatient and outpatient costs and payments, as well as information 
about payments from other revenue sources.

[6] Most of the 683 potential CAHs (79 percent) exceeded the CAH 
bedsize limit. We did not exclude these hospitals from our definition 
of potential CAHs because hospitals have the option of reducing their 
bedsize in order to become eligible for CAH conversion. Our inclusion 
of hospitals with an average census up to 15 is likely a high estimate 
of the number of potential CAHs because hospitals with an annual 
average of 15 acute care patients per day may need more than 15 acute 
care beds to accommodate variation in their patient census that 
periodically causes them to exceed 15. 

[7] New Jersey, Rhode Island, Delaware, and Washington D.C. do not 
participate in the CAH program. All but 5 state CAH coordinators 
participated in the e-mail survey or were interviewed.

[8] A hospital with swing beds can "swing" its beds between hospital 
and skilled nursing levels of care, on an as needed basis.

[9] Among 42 states responding to a RHFTP survey, 17 states provide 
enhanced Medicaid payments to CAHs, and 13 states provide enhanced 
reimbursement for outpatient services. 

[10] 42 C.F.R. §§ 485.601 et seq. (2002).

[11] Connecticut, Delaware, Maryland, New Jersey, and Rhode Island did 
not have CAHs as of September 2002. 

[12] Medicare, Medicaid and SCHIP Balanced Budget Refinement Act of 
1999, Pub. L. No. 106-113, App. F, § 403(a), 113 Stat. 1501A-321, 
1501A-370-372.

[13] List of CAH conversions by state downloaded from www.rupri.org/
rhfp-track on September 27, 2002. 

[14] G. Norquist et al., "Quality of Care for Depressed Elderly 
Patients Hospitalized in the Specialty Psychiatric Units or General 
Medical Wards," Archives of General Psychiatry, vol. 52, no. 8 (1995). 

[15] R. L. Kane et al., '"Functional Outcomes of Posthospital Care for 
Stroke and Hip Fracture Patients under Medicare," Journal of the 
American Geriatric Society, vol. 46, no. 12 (1998).

[16] For a hospital to establish a psychiatric DPU, Medicare 
regulations require that a hospital must furnish, through the use of 
qualified personnel, psychological services, social work, psychiatric 
nursing, occupational therapy and recreational therapy. Inpatient 
psychiatric services must be under the supervision of a clinical 
director, service chief, or equivalent who is qualified to provide the 
leadership required for an intensive treatment program, and who is 
board certified in psychiatry. The DPU must have a director of nursing 
who is a registered nurse with a master's degree in psychiatric or 
mental health nursing or who is qualified by education and experience, 
and a director of social services. There also must be an adequate 
number of registered nurses to provide 24-hour-a-day coverage as well 
as licensed practical nurses and mental health workers. 42 C.F.R. § 
412.27 (2002). For a hospital to establish a rehabilitation DPU, 
Medicare regulations require that a hospital must provide 
rehabilitation nursing, physical and occupational therapy, speech 
therapy, plus as needed, social services or psychological services and 
orthotics and prosthetics. The unit must have a director of 
rehabilitation who is experienced in rehabilitation and is a doctor of 
medicine or a doctor of osteopathy. 42 C.F.R. § 412.29 (2002).

[17] 42 C.F.R. § 412.27(a) (2002). Psychiatric principal diagnoses are 
listed in the Third Edition of the American Psychiatric Association 
Diagnostic and Statistical Manual and in chapter 5 of the International 
Classification of Diseases, 9th Edition Clinical Modification (ICD-9-
CM). 

[18] TEFRA (Pub. L. No. 97-248, § 101(a)(1), 96 Stat. 324, 331-333) 
established this payment methodology for classes of hospitals deemed 
exempt from the PPS. The target amount is the PPS-exempt provider's 
Medicare-allowable costs per patient stay in a designated base year, 
inflated to the current year by an annual update factor.

[19] Eighty-one of the 93 operated only a psychiatric DPU, 7 operated 
only a rehabilitation DPU, and 5 operated both types of DPUs. 

[20] Rural Policy Research Institute, Rural Hospital Flexibility 
Program Tracking Project Year Two Report (Columbia, Mo. 1999.). 

[21] Medicare cost report data for fiscal year 1999 were used because 
they were the most current complete data available. There is typically 
a several year delay between the start of a fiscal year and the point 
at which a complete set of audited hospital cost report data are 
available for that year.

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