CPT® Code 35683

Add-On Code

Bypass graft; autogenous composite, 3 or more segments of vein from 2 or more locations (List separately in addition to code for primary procedure)

The CPT® Code 35683 refers to a surgical procedure known as a bypass graft, specifically an autogenous composite bypass graft that utilizes three or more segments of vein harvested from two or more locations. This procedure is performed when a patient lacks an adequate segment of vein in the limb that is undergoing the bypass procedure, necessitating the use of vein segments from other areas of the body. The term "autogenous" indicates that the vein segments used in the graft are sourced from the patient's own body, which helps to reduce the risk of rejection and complications associated with foreign materials. The physician may harvest vein segments from various locations, including the contralateral greater saphenous vein, lesser saphenous vein, superficial femoral vein, or from the cephalic or basilic veins in the arm. The harvested segments are then meticulously anastomosed, or surgically connected, to create a composite graft that serves as a conduit for blood flow, effectively bypassing the obstructed or diseased segment of the artery. This procedure is critical in restoring adequate blood circulation to the affected limb, thereby improving the patient's overall vascular health and functionality.