Billing code 77306: Radiation planMedicare rate & RVUs

Medicare pays $150.30 for 77306 nationally in the office. Local office rates run $134.64–$199.13.

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 77306 covers

This service covers development of an isodose plan for external-beam radiation therapy. A radiation oncologist directs the prescription and plan, with dosimetrists and medical physicists commonly supporting the calculations and planning work. The simple level is associated with one treatment area and a straightforward arrangement, typically one or two opposed beams. It is used in radiation oncology practices and treatment centers to plan the intended dose distribution before treatment delivery.

Select this code when the documented plan meets the simple-level criteria; a more involved arrangement or multiple treatment areas may point to 77307 instead. The record should support the treatment area, beam arrangement, prescribed dose, and resulting plan. Report it for the planning service, not for each treatment fraction. CMS lists separately priced professional and technical components: modifier 26 identifies the professional portion, modifier TC the technical portion, and billing without either modifier represents the global service.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where 77306 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

77306 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 77306 rate is calculated

Each of 77306’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 77306

The CMS indicators that decide how 77306 is paid alongside other services.

What modifiers do to the payment

When to use modifier 26

77306 compared with similar codes

How to choose

77307Isodose planning

Choose 77306 for a simple plan with one treatment area and a straightforward beam arrangement. Use 77307 when the plan's arrangement or treatment areas meet the complex-level criteria.

77301IMRT planning

77306 describes simple teletherapy isodose planning; 77301 is for IMRT planning, a distinct planning approach.

77316Brachytherapy plan

77316 is for simple brachytherapy isodose planning, while 77306 is for external-beam teletherapy planning.

77321Radiation plan

77321 concerns a special teletherapy port plan. It is not the code for the basic simple isodose plan described by 77306.

Codes related to 77306

Related codes aren’t interchangeable: bill the code that matches the service performed.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates