CPT® Code 35483

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1. Indications

The procedure described by CPT® Code 35483 is indicated for patients experiencing significant arterial occlusion in the femoral-popliteal region, which may lead to symptoms such as claudication, limb ischemia, or critical limb ischemia. The following conditions may warrant the performance of this procedure:

• Claudication - Patients may present with pain or cramping in the legs during physical activities due to inadequate blood flow.
• Limb Ischemia - This condition occurs when there is insufficient blood supply to the limbs, potentially leading to tissue damage.
• Critical Limb Ischemia - A severe form of limb ischemia that can result in non-healing wounds, ulcers, or gangrene, necessitating urgent intervention.

2. Procedure

The procedure for CPT® Code 35483 involves several critical steps to ensure effective plaque removal from the femoral-popliteal artery:

• Step 1: Preparation and Incision - The skin over the access artery is thoroughly prepped to maintain a sterile environment. An incision is made to expose the artery, allowing for direct access to the vascular structure.
• Step 2: Artery Exposure and Sheath Placement - Once the artery is exposed, a small nick is made in the artery to facilitate the placement of a sheath. This sheath serves as a conduit for the subsequent instruments used in the procedure.
• Step 3: Guidewire Insertion - A guidewire is inserted through the sheath and advanced from the access artery to the site of the occlusion. This guidewire is crucial for navigating the atherectomy catheter to the blockage.
• Step 4: Atherectomy Catheter Advancement - The atherectomy catheter is then advanced over the guidewire. Once positioned correctly, the guidewire is withdrawn, allowing the atherectomy device to operate directly on the plaque.
• Step 5: Plaque Removal - The atherectomy device utilizes a specialized balloon catheter with a cutting piston that shaves plaque from the arterial wall. As the plaque is removed, it is collected in the nose of the atherectomy device for removal at the end of the procedure.
• Step 6: Multiple Passes - The physician may perform several passes with the atherectomy device to ensure that the desired level of plaque removal is achieved, optimizing blood flow restoration.
• Step 7: Angiography - After the atherectomy, the device is exchanged for a guidewire, and an angiography catheter is advanced over the guidewire. Contrast material is injected to visualize the artery, and a completion angiography is performed to confirm that the vessel is patent.
• Step 8: Closure - Following the completion angiography, the angiography catheter is withdrawn, and the access artery is repaired. The skin incision is then closed, completing the procedure.

3. Post-Procedure

Post-procedure care for patients undergoing CPT® Code 35483 typically includes monitoring for any complications such as bleeding, infection, or hematoma at the incision site. Patients may be advised to rest and limit physical activity for a specified period to promote healing. Follow-up appointments are essential to assess the success of the procedure and to monitor the patient's recovery and vascular health. Additionally, patients may require lifestyle modifications and medication management to prevent future arterial blockages.