NIS Description of Data Elements

DS_Mrt_Level - Disease Staging:Mortality Level

Documentation Sections:

Disease Staging was assigned using software developed by Medstat. Starting with the 2008 NIS, this data element is unavailable because it was discontinued as part of the Disease Staging software. This severity measure includes the disease category and stage for the principal diagnosis and predictive scales for mortality, length of stay, and total charges. The prefix "DS_" has been included in the data element name to distinguish the Disease Staging 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
Disease Staging V5.2 Diagnostic Categories
Disease Staging V5.2 Reference Guide

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Uniform Values

Variable	Description	Value	Value Description
DS_Mrt_Level	Disease Staging:Mortality Level	0	Extremely low - excluded from percentile calculation (mortality probability less than .0001)
		1	Very low (less than 5% of patients)
		2	Low (5 - 25% of patients)
		3	Medium (25 - 75% of patients)
		4	High (75 - 95% of patients)
		5	Very high (greater than 95% of patients)
		.	Missing

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State Specific Notes

Pennsylvania

For the 2002-2003 NIS, this data element is not available for discharges from Pennsylvania.

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