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Description of NIS Files

Description of Data Elements in the NIS
Description of Data Elements
Descriptions can be viewed as a single document (approximately 200+ pages long for the Core Data Elements and 60+ pages long for the Hospital File Data Elements).

The PDF versions of the data element descriptions were created when the databases were developed. Any updates to the data element descriptions are contained in the data element-specific notes.

Select to access a printable version of all data elements.


Internet Citation: NIS Database Documentation Archive. Healthcare Cost and Utilization Project (HCUP). December 2019. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nis/nisarchive.jsp.
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Last modified 12/6/19