CPT® Code 0408T

Insertion or replacement of permanent cardiac contractility modulation system, including contractility evaluation when performed, and programming of sensing and therapeutic parameters; pulse generator with transvenous electrodes

A permanent cardiac contractility modulation (CCM) system is a specialized medical device designed for patients suffering from moderate to severe chronic heart failure. This system functions by generating electrical impulses that are delivered to the heart muscle during the absolute refractory period of the cardiac cycle. The primary purpose of these impulses is to enhance the contractility of the heart muscle, thereby improving its ability to pump blood effectively. Importantly, these electrical impulses are non-excitatory, meaning they do not alter the heart's rhythm; instead, they modulate the strength of the muscle contractions. The procedure for inserting or replacing a CCM system involves creating a small incision in the right pectoral region to form a pocket for the pulse generator. Access to the heart is achieved through the right subclavian, cephalic, or axillary vein using a plastic sheath. Electrodes, also known as pacemaker lead wires, are then inserted through this sheath and guided under fluoroscopy to the heart. The positioning of the sensing lead in the right atrium and the two CCM transmission leads in the right ventricular septum is critical for the system's functionality. After connecting the leads to the pulse generator, their location and operational integrity are verified. If necessary, a contractility evaluation is performed, and the pulse generator is programmed to establish the appropriate sensing and therapeutic parameters. Finally, the pulse generator is securely placed in the previously created pocket, and the incision is closed with sutures. The CPT® Code 0408T specifically reports the insertion or replacement of the complete CCM system, including the pulse generator and transvenous electrodes, along with any programming and evaluation performed during the procedure.