January 2021 Update of the Ambulatory Surgical Center (ASC) Payment System
This article describes changes to and billing instructions for various payment policies implemented in the January 2021 Ambulatory Surgical Center (ASC) payment system update. CR 12129 also includes updates to HCPCS. CMS revised this article to reflect the revised Change Request (CR) 12129, which CMS issued on January 8. The revisions to the CR did not change the substance of this article.