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NEDS: Database Documentation
The NEDS is a set of hospital-based emergency department databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
The Nationwide Emergency Department Sample (NEDS)

The Nationwide Emergency Department Sample (NEDS) produces national estimates about emergency department (ED) visits across the country. The NEDS describes ED visits, regardless of whether they result in admission, and is an exceptional resource for conducting research on high-profile emergent health delivery issues. One of the most distinctive features of the NEDS is its large sample size, which allows for analysis across hospital types and the study of relatively uncommon disorders and procedures. The links below provide detailed documentation for the NEDS.
Description of NEDS Files Restrictions on the Use of the NEDS Load Programs
NEDS Data Elements
Additional Resources for NEDS Data Elements
  Known Data Issues
HCUP Tools: Labels and Formats NEDS Related Reports

Internet Citation: HCUP NEDS Database Documentation. Healthcare Cost and Utilization Project (HCUP). January 2016. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 1/4/16