NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH
International Classification of Diseases
to Clinical Classifications Software Crosswalk" navbox="inc_tab5" -->

"Developed at the Agency for Healthcare Research and Quality (AHRQ), the Clinical Classifications Software (CCS) is a tool for clustering patient diagnoses and procedures into a manageable number of clinically meaningful categories. CCS offers researchers the ability to group conditions and procedures without having to sort through thousands of codes. This "clinical grouper" makes it easier to quickly understand patterns of diagnoses and procedures so that health plans, policy makers, and researchers can analyze costs, utilization, and outcomes associated with particular illnesses and procedures."

AHRQ provides a lot of information about the CCS:

Please visit http://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp for citation of the original source.

Another collection of data sets of ICD9 titles is available.

The SAS, Stata, and CSV files are offered here with uniform file names and variable names to make the ICD HCC crosswalks a bit easier to use.

ICD CCS Crosswalk

Diagnoses
Procedures
Stata
SAS
CSV
Description
Stata
SAS
CSV
Description
dta
sas7bdat
csv
desc
dta
sas7bdat
csv
desc

To report errors, or if you have comments or suggestions, e-mail jroth@nber.org.

Last Update: August 3, 2014 Created by Jean Roth August 3, 2014

 
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