US · guidance
CMS Pub. 100-04, ch. 14, § 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.
History
(Rev.11793; Issued:01-19-23; Effective: 02-21-23; Implementation: 02-21-23)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
31a5caebaf85a27e6abd751deaa72223798d2735f283040d657071b9b592d3ec
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