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SID Database Documentation
The State Inpatient Databases (SID) are a set of longitudinal State-specific hospital inpatient databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
SID Database Documentation

The State Inpatient Databases (SID) are State-specific files that contain all inpatient care records in participating states. Together, the SID encompass more than 95 percent of all U.S. hospital discharges. The uniform format of the SID helps facilitate cross-state comparisons. In addition, the SID are well suited for research that requires complete enumeration of hospitals and discharges within geographic areas or states.

The following links provide database documentation for the SID, from a high-level Overview to all the detailed specifications, restrictions, and resources necessary for researchers working and publishing with the SID.
Description of SID Database Restrictions on Use File Specifications and Load Programs Data Elements Additional Resources for Data Elements
  • HCUP Quality Control Procedures (PDF file, 345 KB; HTML)
  • HCUP Coding Practices (PDF, 16 KB; HTML)
  • HCUP Hospital Identifiers (PDF file, 82 KB; HTML)
Known Data Issues HCUP Tools: Labels and Formats HCUP Supplemental Files Obtaining HCUP Data

Internet Citation: SID Database Documentation. Healthcare Cost and Utilization Project (HCUP). June 2016. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 6/30/16