2026 Radiation Therapy CPT Codes

The following table lists the radiation therapy treatment codes that Eviti reviews.

External Beam Radiation
77402	Radiation treatment delivery; Level 1 (e.g., single electron field, multiple electron fields, or 2D photons), including imaging guidance, when performed
77407	Radiation treatment delivery; Level 2, single isocenter (e.g., 3D or IMRT), photons, including imaging guidance, when performed
77412	Radiation treatment delivery; Level 3, multiple isocenters with photon therapy (e.g., 2D, 3D, or IMRT) OR a single isocenter photon therapy (e.g., 3D or IMRT) with active motion management, including imaging guidance, when performed
Radiosurgery
77371	Stereotactic radiosurgery (SRS), complete course of treatment of cranial lesion(s) consisting of 1 session; multisource Cobalt 60 based
77372	Stereotactic radiosurgery (SRS), complete course of treatment of cranial lesion(s) consisting of 1 session; linear accelerator based
77373	Stereotactic body radiation therapy, treatment delivery, per fraction to 1 or more lesions, including image guidance, entire course not to exceed 5 fractions
Brachytherapy
77424	Intraoperative radiation treatment delivery, xray, single treatment session
77425	Intraoperative radiation treatment delivery, electrons, single treatment session
77750	Infusion or instillation of radioelement solution
77761	Intracavitary radiation source application; simple
77762	Intracavitary radiation source application; intermediate
77763	Intracavitary radiation source application; complex
77767	Remote afterloading high dose rate radionuclide skin surface brachytherapy, 1 channel
77768	Remote afterloading high dose rate radionuclide skin surface brachytherapy, 2 or more channels, or multiple lesions
77770	Remote afterloading high dose rate radionuclide interstitial or intracavitary brachytherapy, includes basic dosimetry, when performed; 1 channel
77771	Remote afterloading high dose rate radionuclide interstitial or intracavitary brachytherapy, includes basic dosimetry, when performed; 212 channels
77772	Remote afterloading high dose rate radionuclide interstitial or intracavitary brachytherapy, includes basic dosimetry, when performed; over 12 channels
77778	Interstitial radiation source application
77789	Surface application of low dose rate radionuclide source
0395T	High dose rate electronic brachytherapy, interstitial or intracavitary treatment
Proton Therapy
77520	Proton treatment delivery; simple, without compensation
77522	Proton treatment delivery; simple, with compensation
77523	Proton treatment delivery; intermediate
77525	Proton treatment delivery; complex
Surface Treatment
77436	Surface Radiation – Treatment Planning and Simulation-aided Field Setting
77437	Superficial Delivery <150kV, (ie electronic brachytherapy)
77438	Orthovoltage Delivery, >150kV – 500kV
77439	Surface Radiation – Image Guidance – Ultrasound Placement (billed once per course)
Hyperthermia
77600	Hyperthermia, externally generated; superficial
77605	Hyperthermia, externally generated; deep
77610	Hyperthermia generated by interstitial probe(s); < 5 applicators
77615	Hyperthermia generated by interstitial probe(s); > 5 applicators
77620	Hyperthermia generated by intracavitary probe(s)