Modifier SG Fact Sheet
Services Performed at an Ambulatory Surgical Center (ASC) facility
- Do not use for dates of service January 1, 2008 and after.
Refer to the Centers for Medicare & Medicaid Services (CMS) Internet Only Manuals (IOM) Publication 100-04 cChapter 14Adobe Portable Format document Ambulatory Surgical Centers (ASCs) for more specific information relating to ASC services.
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