Question: Does presence of a cardiac device (like a pacemaker) qualify as a reason to code 77470? Indiana Subscriber Answer: Whether you may report 77470 (Special treatment procedure [e.g., total body irradiation, hemibody radiation, per oral, endocavitary or intraoperative cone irradiation]) depends on the additional work required for a particular circumstance rather than on the mere existence of that circumstance. In other words: Also, remember that you should report 77470 only once per course of therapy. CPT's note under the code specifies that "77470 assumes that the procedure is performed 1 or more times during the course of therapy, in addition to daily or weekly patient management."