NIS Description of Data Elements
The following links provide data elements descriptions for the National (Nationwide) Inpatient Sample (NIS).
Data element descriptions explain how the data element is coded in the HCUP databases, what the uniform values are, and State-specific coding practices. The descriptions are cumulative across all States and years of NIS data from 1988 to the current data year. Please note the following:
For a description of how HCUP data elements are coded, restriction on use, uniform values, and state-specific coding practices, check the corresponding boxes below and then click the "View Description of Data Elements".
* This data element is discontinued. Please refer to the Availability of Data Elements by year table to see the year it was discontinued.
|Internet Citation: NIS Description of Data Elements. Healthcare Cost and Utilization Project (HCUP). November 2016. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nis/nisdde.jsp.|
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|Last modified 11/7/16|