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SASD Database Documentation

State Ambulatory Surgery and Services Databases (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, 950 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 SASD Starting With 2015 Known Data Issues HCUP Tools: Labels and Formats
  • Format Programs
    • HCUP Formats Program (TXT file, 108 KB) Creates SAS formats to label the values of selected categorical data elements in HCUP files
    • HCUP Diagnosis and Procedure Groups Formats Program (TXT file, 61 KB) Creates SAS formats to label the values of HCUP Diagnosis and Procedure Groups data elements, including Clinical Classifications Software Refined (CCSR) data elements
    • ICD-9-CM Formats Program (TXT file, 910 KB) Creates SAS formats to label the values of ICD-9-CM Diagnoses and Procedures
    • ICD-10-CM Formats Program (TXT file, 12.3 MB) Creates SAS formats to label the values of ICD-10-CM Diagnoses and Procedures
HCUP Supplemental Files Obtaining HCUP Data

Internet Citation: SASD Database Documentation. Healthcare Cost and Utilization Project (HCUP). June 2022. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 6/14/22