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Comparability of Cause-of-death Between ICD Revisions
Cause-of-death titles change from time-to-time. This reflects the periodic revisions to the classification (the International Classification of Diseases (ICD-10, ICD-9, and earlier revisions) used to show cause of death. The classification is revised to incorporate and capture changes in medical knowledge. The revisions, in some instances, do create breaks in the comparability of a cause of death between two years.
Studies of the comparability between revisions of the ICD are routinely done as part of the implementation of a new revision of an ICD. The Hetzel (1997) publication lists comparability study reports that should be examined in connection with trend analyses that cross ICD revisions. The key measure in a comparability study is a comparability ratio that represents the net effect of the new revision on cause-of-death statistics.
Source documents for the tables shown include unpublished worktables from CDC/National Center for Health Statistics, National Vital Statistics System, Mortality data and CDC/NCHS publications.
A
Guide to State Implementation of ICD-10 for Mortality, Part II: Applying
Comparability Ratios (51 pages)
View/download
WordPerfect document 1.3 MB
View/download PDF 374
KB
Reports on the
comparability of
cause-of-death classification between:
ICD-9
and ICD-10
Mechanism
of Injury and Intent of Death (Table I)
ICDA-8
and ICD-9
ICD-7
and ICDA-8
Final
Provisional
ICD-6
and ICD-7
ICD-5
and ICD-6
ICD-4
and ICD-5
Comparability
Comparability
of titles through five revisions
Comparability across revisions for selected causes table
Downloadable data sets for ICD-9/ICD-10 study:
Readme
file
Comparability
data set documentation
1996
data set documentation
Comparability
data set
Comparability
ratio tables
SAS
Input Statements
State
guide
This page last reviewed September 09, 2008
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