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Central Distributor SID: Description of Data Elements

ADRGRISKMORTALITY - All Patient Refined Risk of Mortality Subclass
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

The All Patient Refined Risk of Mortality Class (ADRGRiskMortality) reports the likelihood of dying as determined by the APR system. APR Risk of Mortality Class is supplied by the data source. During HCUP processing, the codes are assigned to the HCUP data element ADRGRMS as reported, without modification.

For more information see "All Patient Refined Diagnosis Related Groups (APR-DRGs)," published by 3M Health Information Services.

In HCUP databases before 1998, this data element is called ADRGRMS.

Uniform Values
VariableDescriptionValueValue Description
ADRGRISKMORTALITYAll Patient Refined Risk of Mortality Subclass1Minor likelihood of dying
2Moderate likelihood of dying
3Major likelihood of dying
4Extreme likelihood of dying
State Specific Notes


For 2018 - Q4 and 2019 Q1-Q3, the APR-DRGs were incorrectly assigned for infants under the age of 1 year admitted after the date of birth and that had no birth weight reported.

Beginning 2016, Massachusetts provides the 3M Health Information Systems All Patient Refined (APR) DRG grouper Version 34.0.

From 2014 through 2015, Massachusetts provides the APR-DRG Version 30.0.

From 2009 through 2013, Massachusetts provides the Version 26.1 grouper to assign ADRGRISKMORTALITY.

From October 2006 through September 2008, Massachusetts used the Version 20 grouper to assign ADRGRISKMORTALITY. Beginning in October 2008, Massachusetts no longer provided the Version 20 grouper to assign ADRGRISKMORTALITY. From October 1999 through September 2006, Massachusetts used Version 15. Prior to that, Massachusetts used the Version 12 grouper.


Internet Citation: HCUP Central Distributor SID Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). May 2024. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 5/22/24