# CPT 77301

> Medicare paid $1,950.83 for CPT 77301 in the office (non-facility) setting and $1,950.47 in a facility under the Q4 2015 Physician Fee Schedule, effective October 2015. These are the national allowed amounts before the ~2% sequestration cut and before locality (GPCI) adjustment. This is a 0.5% increase from the previous quarter.

## What it is

The planning work behind intensity-modulated radiation therapy, where the strength of the beam is varied across the field so that dose wraps tightly around an irregular tumor while dropping off fast toward nearby organs. Planning is done backwards from the goal: the team specifies the dose the target must receive and the limits each critical structure must stay under, and the software solves for the beam intensities, producing dose-volume histograms for the target and every organ at risk. It takes substantially more computation and review than conventional 3D conformal planning.

## Selected release

- Release: Q4 2015 (2015 D)
- Effective: October 1 – December 31, 2015
- Status indicator: A
- Office (non-facility) national allowed amount: $1950.83
- Facility national allowed amount: $1950.47
- Sequestration: not applied

## RVUs and formula

- Work RVU: 7.99
- Office (non-facility) practice expense RVU: 45.66
- Facility practice expense RVU: 45.65
- Malpractice RVU: 0.64
- Conversion factor: 35.9335
- Formula: `(work_rvu × work_gpci + pe_rvu × pe_gpci + mp_rvu × mp_gpci) × conversion_factor`

## Source and citation

- Source: Physician relative value file (Q4 2015)
- CMS file: https://www.cms.gov/medicare/medicare-fee-for-service-payment/physicianfeesched/downloads/rvu15d.zip
- Parsed file: PPRRVU15_OCT05_V1001.csv, row 12,355
- Canonical page: https://localishealth.com/cpt/77301/2015/D
- Release-specific citation URL: https://localishealth.com/cpt/77301/2015/D
- Last significant update: 2026-08-04T03:06:14+00:00