HCPCS 77371

Radiation treatment delivery, stereotactic radiosurgery (SRS), complete course of treatment of cranial lesion(s) consisting of 1 session; multi-source Cobalt 60 based

AI EXPLANATION: Gamma Knife radiosurgery is an advanced, non-invasive radiation treatment used to manage brain tumors, vascular malformations, and other neurological conditions. Despite the word surgery, the procedure involves no incisions or surgical openings. Instead, highly specialized equipment delivers hundreds of tiny, concentrated beams of radiation directly to the targeted area in the brain during a single session, treating diseased tissue while protecting surrounding healthy brain matter.