NRD Description of Data Elements

APRDRG_Severity - All Patient Refined DRG: Severity of Illness Subclass

Documentation Sections:

The All Patient Refined DRGs (APR-DRGs) are assigned using software developed by 3M Health Information Systems. This severity measure includes the base APR-DRG, the severity of illness subclass, and the risk of mortality subclass within each base APR-DRG. The prefix "APRDRG" has been included in the data element names to distinguish APR-DRG measures from other HCUP data elements. For more information, please refer to the following documents available on the NIS Documentation CD-ROM and on the HCUP User Support Website (www.hcup-us.ahrq.gov):

Overview of Severity Systems
APR-DRGs V20 Methodology Booklet

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Uniform Values

Variable	Description	Value	Value Description
APRDRG_Severity	All Patient Refined DRG: Severity of Illness Subclass	0	No class specified
		1	Minor loss of function (includes cases with no comorbidity or complications)
		2	Moderate loss of function
		3	Major loss of function
		4	Extreme loss of function
		.	Missing

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