The Medicare Payment Advisory Commission's report on the health care industry is used a guide by Congress in determining policy affecting all health care providers, including ASCs. The section on Ambulatory Surgery Centers is in Chapter 5, page 105.
The Medicare Approved ASC Procedures list Excel file includes all outpatient surgeries that Medicare has approved to be performed in an ambulatory surgical center. The file also has a tab with the list of procedures that Medicare will not pay for in an ASC.
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Medicare ASC Regulations
Title 42 of the Code of Federal Regulations (42CFR Part 416) contains the rules and regulations governing Medicare certified ambulatory surgery centers.