Nationwide Ambulatory Surgery Sample (NASS) Database Documentation
The largest all-payer ambulatory surgery database in the United States, the Nationwide Ambulatory Surgery Sample (NASS) produces national estimates of major ambulatory surgery encounters in hospital-owned facilities. The NASS contains clinical and resource-use information that is included in a typical hospital-owned facility record, including patient characteristics, clinical diagnostic and surgical procedure codes, disposition of patients, total charges, expected source of payment, and facility characteristics.
The links below provide detailed documentation for the NASS, from a high-level overview to all the detailed specifications, restrictions, and resources necessary for researchers working and publishing with the NASS.
Description of NASS Database
|Internet Citation: NASS Database Documentation. Healthcare Cost and Utilization Project (HCUP). November 2022. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/nation/nass/nassdbdocumentation.jsp.|
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|Last modified 11/16/22|