Keep an eye on the Medicare Physician Fee Schedule to see which procedures may be split into professional and technical components. CPT codes that fall into this category include: - 77280-77295 -- Therapeutic radiology simulation-aided field setting ... - 77300 -- Basic radiation dosimetry calculation, central axis depth dose calculation, TDF, NSD, gap calculation, off axis factor, tissue inhomogeneity factors, calculation of non-ionizing radiation surface and depth dose, as required during course of treatment, only when prescribed by the treating physician - 77301-77334 -- Medical radiation physics, dosimetry, treatment devices, and special services - 77421 -- Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy - 77470 -- Special treatment procedure (e.g., total body irradiation, hemibody radiation, per oral, endocavitary or intraoperative cone irradiation) - 77600-77620 -- Hyperthermia - 77750-77790 -- Brachytherapy.