CPT® Code 37700

The procedure described by CPT® Code 37700 involves the surgical ligation and division of the long saphenous vein, which is a major vein located in the leg. This procedure is specifically performed at the saphenofemoral junction, where the long saphenous vein meets the femoral vein, or at a point distal to this junction. The term 'ligation' refers to the process of tying off the vein to prevent blood flow, while 'division' indicates the cutting of the vein. The procedure typically begins with an incision made in the groin crease to access the long saphenous vein and its tributaries, which are smaller veins that drain into the long saphenous vein. Once exposed, these tributaries are carefully dissected and ligated with sutures to ensure they do not bleed. The surgeon then exposes the saphenofemoral junction, ligates the long saphenous vein, and divides it flush with the femoral vein. In cases where the interruption occurs distal to the saphenofemoral junction, a separate incision is made in the thigh over the vein, allowing for similar exposure, dissection, ligation, and division of the long saphenous vein. This procedure is often indicated for various venous conditions, including varicose veins, and is crucial for managing venous insufficiency and improving venous circulation in the lower extremities.