AHRQ: Agency for Healthcare Research and Quality
 
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, 383 KB; HTML)
  • HCUP Coding Practices (PDF file, 138 KB; HTML)
  • HCUP Hospital Identifiers (PDF file, 162 KB; HTML)
 ICD-10-CM/PCS Data Included in the SID Starting With 2015 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). October 2020. Agency for Healthcare Research and Quality, Rockville, MD. www.hcup-us.ahrq.gov/db/state/siddbdocumentation.jsp.
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Last modified 10/21/20