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SASD Database Documentation
The State Ambulatory Surgery and Services Databases (SASD) are a set of longitudinal State-specific ambulatory surgery and services databases included in the HCUP family. These databases are created by AHRQ through a Federal-State-Industry partnership.
SASD Database Documentation

The State Ambulatory Surgery and Services Databases (SASD) are State-specific files that include data for ambulatory surgery and other outpatient services from hospital-owned facilities. In addition, some States provide ambulatory surgery and outpatient services from nonhospital-owned facilities. The uniform format of the SASD helps facilitate cross-State comparisons. The SASD are well suited for research that requires complete enumeration of hospital-based ambulatory surgeries within geographic areas or States.

The following links provide database documentation for the SASD, from a high-level Overview to all the detailed specifications, restrictions, and resources necessary for researchers working and publishing with the SASD.
Description of SASD 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: SASD 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