Diagnosis-Related Group Major Diagnostic Category Crosswalk

Last Updated September 2025

Source CMS/AHRQ

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

These tables are obtained from CMS's IPPS Final Rule appendix tables: Table 5: MS-DRGs, Relative Weighting Factors and Geometric and Arithmetic Mean Length of Stay

DRG Weight Data and DRG MDC Crosswalk

Note: The MDC variable is available in the data files for 2015 going forward.

Year	DRG Weight Data					DRG MDC Crosswalk
	Stata	SAS	CSV	Description	Stata	SAS	CSV	Description
2026	dta	sas7bdat	csv	desc
2025	dta	sas7bdat	csv	desc
2024	dta	sas7bdat	csv	desc
2023	dta	sas7bdat	csv	desc
2022	dta	sas7bdat	csv	desc
2021	dta	sas7bdat	csv	desc
2020	dta	sas7bdat	csv	desc
2019	dta	sas7bdat	csv	desc
2018	dta	sas7bdat	csv	desc
2017	dta	sas7bdat	csv	desc
2016	dta	sas7bdat	csv	desc
2015	dta	sas7bdat	csv	desc
2014	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2013	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2012	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2011	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2010	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2009	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2008	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2007	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2006	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2005	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2004	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2003	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2002	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2001	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
2000	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1999	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1998	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1997	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1996	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1995	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1994	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1993	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1992	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1991	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1990	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1989	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1988	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1987	dta	sas7bdat	csv	desc	dta	sas7bdat	csv	desc
1986	dta	sas7bdat	csv	desc	--
1985	dta	sas7bdat	csv	desc
1984	dta	sas7bdat	csv	desc

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Diagnosis-Related Group Major Diagnostic Category Crosswalk

DRG Weight Data and DRG MDC Crosswalk

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