CPT® Code 77401

Superficial and/or ortho voltage radiation therapy is a specialized treatment that employs low dose energy ionizing radiation to target non-melanoma skin cancers, including basal cell and squamous cell carcinomas, as well as recurrent keloids located on or near the skin's surface. This type of radiation therapy is particularly beneficial for patients who may not be suitable candidates for surgical interventions due to underlying medical conditions. The procedure utilizes two distinct energy ranges: superficial radiation therapy operates within 50-200 kV, allowing for penetration of approximately 5 mm into the skin, while ortho voltage radiation therapy functions within 200-500 kV, reaching depths of 4-6 cm. Both modalities can be administered in a physician's office setting without the need for anesthesia, making them accessible and convenient for patients. The treatment is characterized by its simplicity, safety, and precision, resulting in minimal side effects. It is especially advantageous for lesions located in challenging areas, such as the legs, scalp, or highly visible regions like the nose, where traditional excision may pose greater risks. A comprehensive treatment plan is tailored to each patient, taking into account the size and depth of the lesions, with the total radiation dose divided across multiple treatment sessions, typically administered 2-5 times per week until the complete dose is delivered. The CPT® Code 77401 is designated for reporting the delivery of superficial and/or ortho voltage radiation therapy to one or more skin sites or lesions on a per treatment day basis.