Comparison of Final 2025 OPPS Addendum B with October 2024 Addendum B

This spreadsheet compares relative weights and payment rates at the HCPCS level. The 2025 files are from the 2025 contractor file, dated 1-02-2025 (these are rates for January 1, 2025, through December 31, 2025). The 2024 rates are from the October Addendum contractor files –dated October 2, 2024.

The Addendum B spreadsheet contains the following 6 tabs:

1. 2025 Add. B by HCPCS : compares 2024 and 2025 status indicators, relative weights, and payment rates for all HCPCS codes included in Addendum B; sorted by HCPCS code
2. ­2025 Add. B by APC: same as previous tab but sorted by APC and within APC by HCPCS code
3. ­Status codes G and K: comparisons for separately payable drugs and biologicals with status indicator G or K in the 2025 final rule are shown in this tab
4. 2025 Add. M :  as supplied by CMS, HCPCS Codes for Assignment to Composite APCs for CY 2025
5. 2025 Add. O : as supplied by CMS, New CY 2023 Category I and III CPT Codes Effective January 1, 2025
6. 2025 Status Indicators :  as supplied by CMS, ADDENDUM D1.– OPPS PAYMENT STATUS INDICATORS FOR CY 2025