Ambulatory Surgical Center (ASC) HCPCS Additions, Deletions,

70 - Ambulatory Surgical Center (ASC) HCPCS Additions, Deletions, and Master Listing (Rev.11793; Issued:01-19-23; Effective: 02-21-23; Implementation: 02-21-23) Prior to January 1, 2018, the CMS Division of Data Systems (DDS) releases the ASC HCPCS, additions, deletions, and master listing files of ASC codes on a periodic basis. Instructions on how to retrieve these files from the CMS mainframe telecommunications system are also published on the same periodic basis. The Office of Information Services (OIS) announces the dates that the files are available. Beginning January 1, 2008, the CMS Division of Data Systems (DDS) releases the ASCFS, ASC Drug File, ASC Restated Drug Files, ASC PI file, and the ASC Code Pair file, as appropriate. Instructions on how to retrieve these files from the CMS mainframe are communicated at the time that the files are released. The ASC payment system quarterly recurring update notifications also identify the files that are applicable to that quarter’s update of the payment system.