CMS finalizes the 2026 physician fee schedule and new radiation delivery codes

CMS has finalized the 2026 Medicare physician fee schedule, published in the Federal Register on November 5, 2025. For radiation oncology the biggest change is the code set: from January 1, 2026, treatment delivery is billed with three new codes, 77402, 77407 and 77412, which replace the IMRT delivery codes and the G-codes. Image guidance is billed as 77387 with modifier 26.

There are two conversion factors for 2026: 33.5675 for qualifying APM participants and 33.4009 for everyone else.

Read the CMS fact sheet.