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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.
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