CPT® Code 35881

An open revision of a lower extremity arterial bypass, as described by CPT® Code 35881, involves a surgical procedure aimed at correcting issues with a previously placed arterial bypass graft in the lower extremities. This procedure is specifically performed without thrombectomy and includes the use of segmental vein interposition. The need for such a revision typically arises when the graft, inflow artery, or outflow artery develops a stenosis, which is a narrowing that can lead to reduced blood flow and potential graft failure. The revision is crucial to prevent re-occlusion of the graft, thereby ensuring adequate blood supply to the affected limb. During the procedure, the surgeon makes an incision over the stenosed area of the graft, exposing it for further intervention. The use of segmental vein interposition involves excising the narrowed segment of the graft and replacing it with a harvested segment of vein, often from the saphenous vein. This technique aims to restore proper blood flow and maintain the functionality of the arterial bypass graft.