Central Distributor SID: Description of Data Elements

DRG32 - DRG, version 32

Documentation Sections:

General Notes

Uniform Values

State Specific Notes

General Notes

The Diagnosis Related Group, Version 32 (DRG32) is assigned by the HCFA DRG Grouper algorithm during HCUP processing. DRG32 is available on the HCUP databases beginning in 2015. Diagnosis and Procedures Used for DRG Assignment The DRG grouper can handle a maximum of 50 diagnosis and 50 procedure codes. Only diagnoses and Different Definitions of Diagnosis and Procedure Validity HCUP validation of diagnosis and procedure codes allows a window of time around the official ICD-9-CM coding changes (usually October 1), for anticipation of or lags in response to official ICD-9-CM coding changes. Beginning in the 1998 data, a year window (six months before and six months after) was allowed. The DRG Grouper rules differ in two ways: diagnosis and procedure codes must be valid on the date of discharge to be used for assigning the DRG; and some valid diagnoses (E-codes) are ruled by the DRG Grouper to be invalid if entered as a principal diagnosis. This inconsistency between the definition of a valid diagnosis or procedure is obvious when a discharge has a valid principal diagnosis under HCUP standards, but the assigned DRG is 470 "Ungroupable." Labels Labels for the DRGs are provided as an ASCII file in HCUP Tools: Labels and Formats.

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Uniform Values

Variable Description Value Value Description DRG32 DRG, version 32 nnn DRG value

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State Specific Notes

None

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