Currently, physicians performing stereotactic radiosurgery can bill 99201-99245 for the initial visit, plus 77623 for clinical treatment planning, CPT 77295 for 3D simulation/plan, including isodose plans, one unit of 77300 for each basic calculation, one unit each of 77334 for each treatment device, and 77432 for treatment management, according to Cindy Parman with Coding Strategies in Powder Springs, GA. Also, if the physician performs SRS using a linear accelerator instead of Cobalt 60, the physician can bill 77280-77290 for any simulations, as long as they occur on a separate date.