CPT® Code 33472

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Pulmonary valvotomy, also known as commissurotomy, is a surgical procedure aimed at addressing conditions such as pulmonary atresia and pulmonary stenosis. The pulmonary valve, situated between the right ventricle and the pulmonary artery, plays a crucial role in regulating blood flow from the heart to the lungs. In cases of pulmonary atresia, a congenital heart defect, the pulmonary valve may be underdeveloped or completely absent, which obstructs blood flow from the right ventricle. Conversely, pulmonary stenosis involves a narrowing of the valve opening, which can also impede blood flow. The surgical approach for this procedure typically involves a median sternotomy, where an incision is made along the sternum to access the heart. During the operation, the thymus gland may be partially removed to enhance visibility and access to the heart structures. The specific procedure described by CPT® Code 33472 involves the use of inflow occlusion, where tapes are strategically placed around the superior and inferior vena cava, followed by the application of rubber tourniquets to temporarily halt blood inflow. This technique allows the surgeon to perform the valvotomy with a clear surgical field, ensuring that the pulmonary valve can be effectively inspected and treated. The procedure is critical for restoring normal blood flow and improving the patient's overall cardiac function.