CPT® Code 33506

The procedure described by CPT® Code 33506 involves the surgical repair of an anomalous coronary artery that originates from the pulmonary artery. This condition can lead to significant cardiovascular complications, as the anomalous artery may not supply adequate blood flow to the heart muscle. The surgical intervention entails a translocation of the anomalous coronary artery from its abnormal origin in the pulmonary artery to its proper position in the aorta. To access the heart, the surgeon performs a median sternotomy, which involves making an incision along the sternum to provide a clear view of the heart and surrounding structures. The procedure can be conducted using cardiopulmonary bypass, which temporarily takes over the function of the heart and lungs, or it may be performed on a beating heart using an off-pump technique, allowing for a more direct approach without the need for bypass. During the operation, the pericardium, the protective sac surrounding the heart, is incised, and a patch of pericardial tissue is harvested for later use. The surgeon then incises the pulmonary artery to excise the anomalous origin of the coronary artery, taking a button of pulmonary artery tissue along with it. The anomalous coronary artery is carefully mobilized, and an incision is made in the aorta to facilitate the anastomosis, or surgical connection, of the anomalous artery to the aorta using the harvested pulmonary artery button. After the connection is made, the defect in the pulmonary artery is repaired with the previously harvested pericardial patch. If cardiopulmonary bypass was utilized during the procedure, it is then discontinued. Finally, chest tubes may be placed as necessary to drain any fluid or air, and the chest is closed to complete the surgery.