The following public use data files were used in the preparation of the IPPS Final and/or Proposed Rules. Files available on this page include Case Mix Index, DRG weights and supporting data, ICD-9 Codes, IPPS Impact analysis, the Provider Specific file and County/MSA/CBSA crosswalk file. Data files specific to the wage index may be accessed on our wage index page (please see link under the "Related Links Inside CMS" section of the details page).

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Title	Fiscal Year	Type of Data File
Hospital Nursing Staff Factors for the SCH/MDH Volume Decrease Adjustment for FY07	2007	FY10 Final Notice Data
Table 6I - MCC List	2008	FY08 Final Notice Data
County to CBSA crosswalk file	2008	Other Data Files
Tables 1A - 1D	2008	FY08 Proposed Notice Data
Impact file for IPPS FY 2008 Final Rule - November 2007 FY 2008 Final Notice Data	2008	FY08 Final Notice Data
Case Mix Index	FY 2008	FY08 Proposed Notice Data
Standardizing File	FY 2008	FY08 Proposed Notice Data
AOR/BOR	FY 2008	FY08 Proposed Notice Data
DRG Cost and Charge Weights	FY 2008	FY08 Proposed Notice Data
AOR - File Used to Develop Charge Weights to Calculate Blended Cost/Charge Weights	FY 2008	FY08 Proposed Notice Data

Data Last Updated : 08/31/2009
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