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Central Distributor SASD: Description of Data Elements

FREESTANDING - Indicator of freestanding ambulatory surgery center
Documentation Sections:
General Notes
Uniform Values
State Specific Notes
General Notes

FREESTANDING indicates whether or not an ambulatory surgery center is a freestanding or hospital-owned facility. This variable is based on information provided by the data source and information provided by the AHA. A facility is considered hospital-owned (FREESTANDING = 0) if any one of the following is true:

  • An AHA hospital identifier can be determined.
  • The facility provides inpatient data to the HCUP project, but no AHA hospital identifier can be determined.
  • Documentation provided by the data source clearly indicates the facility is hospital-owned.

An AHA hospital identifier can not always be determined for hospital-owned facilities because hospitals may not be matched to the AHA.

Uniform Values
VariableDescriptionValueValue Description
FREESTANDINGIndicator of freestanding ambulatory surgery center0Hospital-owned ambulatory surgery center
1Freestanding ambulatory surgery center
State Specific Notes



Internet Citation: HCUP Central Distributor SASD Description of Data Elements - All States. Healthcare Cost and Utilization Project (HCUP). May 2024. Agency for Healthcare Research and Quality, Rockville, MD.
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Last modified 5/22/24