Comparison of Proposed 2027 ASC Addendum BB to 2026 Addendum BB

This spreadsheet compares ASC covered ancillary services integral to covered surgical procedures, using 2027 proposed rule Addendum BB compared to 2026 Addendum BB (July 1, 2026, file). The spreadsheet includes an HCPCS lookup tool that allows the user to pull-up basic descriptive and payment information for a code.

The 2026 ASC covered ancillary services integral to covered surgical procedures contains these 6 tabs:

• Addendum BB Comparison: compares 2026 and proposed 2027 status indicators, relative weights, and payment rates for ASC covered ancillary services integral to covered surgical procedures in HCPCS order.
• Addendum BB Sorted: same as previous tab but sorted by percent change in payment rate, from largest percentage loss to biggest percentage gain.
• NPRM New ASC HCPCS: displays the new ASC covered ancillary services.
• ASC Addendum BB Lookup: allows user to lookup descriptive and payment information on a given HCPCS for ASC covered ancillary services integral to covered surgical procedures. User chooses HCPCS or types in HCPCS in formula bar in cell “B2”. Spreadsheets automatically display relevant information. Cells are locked but content can be copied and pasted into another spreadsheet for manipulation.
• Payment Indicators: as supplied by CMS, Addendum DD1 — Proposed ASC Payment Indicators for CY 2027
• Comment Indicators: as supplied by CMS, Addendum DD2 — Proposed ASC Comment Indicators for CY 2027