CPT® Code 37500

The procedure described by CPT® Code 37500 refers to a surgical technique known as vascular endoscopy, specifically involving the ligation of perforator veins in the subfascial space, commonly referred to as Subfascial Endoscopic Perforator Surgery (SEPS). Perforator veins are critical structures that connect the deep venous system, which includes the femoral and popliteal veins, to the superficial venous system, represented by the saphenous veins. In patients suffering from severe chronic venous insufficiency, these perforator veins can become incompetent, leading to complications such as venous ulcerations. The SEPS procedure aims to address these issues by interrupting the abnormal blood flow between the deep and superficial venous systems. This is achieved through a minimally invasive endoscopic approach, which utilizes ultrasound guidance to accurately locate the perforator veins. The procedure involves creating small incisions in the skin of the calf, allowing access to the subfascial space where the perforator veins are situated. By employing techniques such as insufflation with carbon dioxide and the use of specialized surgical instruments, the incompetent veins can be effectively clipped or divided, thereby improving venous function and promoting healing in affected patients.