CPT® Code 34421

Thrombectomy is a surgical procedure aimed at the removal of a thrombus, or blood clot, from specific veins in the body. This particular procedure, identified by CPT® Code 34421, focuses on the vena cava, iliac vein, or femoropopliteal vein, and is performed through an incision made in the leg. The thrombus typically forms in areas where the vein is narrowed or stenotic, leading to potential complications such as impaired blood flow. During the thrombectomy, the surgeon may utilize either direct surgical techniques or catheter-based methods to access and remove the clot. The procedure begins with an incision in the leg or groin to expose the affected vein, allowing for direct access to the thrombus. In some cases, vessel loops are placed both above and below the thrombus to control blood flow during the procedure. The thrombus can be removed directly through the incision, or alternatively, a catheter may be used to facilitate remote removal of the clot. This involves passing an uninflated balloon catheter beyond the thrombus, inflating it, and then withdrawing it to capture and extract the clot. After the thrombus is successfully removed, a venography may be performed to confirm that the entire clot has been eliminated and that the vein is open and functioning properly. It is important to note that different CPT codes apply depending on the location of the thrombus and the incisions used, with CPT® Code 34421 specifically designated for cases where a leg incision is utilized.