CPT® Code 33522

Add-On Code

Coronary artery bypass, using venous graft(s) and arterial graft(s); 5 venous grafts (List separately in addition to code for primary procedure)

Coronary artery bypass graft (CABG) is a surgical procedure aimed at improving blood flow to the heart by bypassing blocked or narrowed coronary arteries. This procedure utilizes a combination of venous and arterial grafts to create new pathways for blood to reach the heart muscle, which is essential for delivering oxygen and nutrients. The coronary arteries are responsible for supplying blood to the heart, and when these arteries become narrowed or blocked due to conditions such as atherosclerosis, it can lead to ischemic heart disease and potentially result in a myocardial infarction, commonly known as a heart attack. CABG is performed to reroute blood around these obstructions, thereby alleviating symptoms such as chest pain and reducing the risk of heart damage. During the procedure, surgeons typically harvest veins, often the greater saphenous veins from the legs, which are then prepared for grafting. The surgical process begins with an incision in the chest, followed by division of the sternum and retraction of the ribs to gain access to the heart. The surgery can be performed using two techniques: the off-pump coronary artery bypass (OPCAB) technique, which allows the surgery to be conducted on a beating heart, or through cardiopulmonary bypass, where the heart is temporarily stopped and blood is rerouted through a heart-lung machine. The prepared vein grafts are meticulously sewn into place, with one end attached to the ascending aorta and the other end connected to the coronary artery beyond the site of blockage. This specific code, CPT® 33522, is designated for reporting the use of five venous grafts in conjunction with arterial grafts, which must be reported separately using the appropriate codes for accurate billing and documentation.