CPT® Code 35481

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The CPT® Code 35481 refers to a specific medical procedure known as open transluminal peripheral atherectomy of the aorta. This procedure is performed to remove plaque buildup from the arterial walls, which can obstruct blood flow. The term "transluminal" indicates that the procedure is conducted within the lumen of the artery, while "atherectomy" refers to the surgical removal of atherosclerotic plaque. In this case, the focus is on the aorta, a major artery that carries blood from the heart to the rest of the body. The procedure begins with the preparation of the skin over the access artery, followed by an incision to expose the artery. A sheath is then placed into the artery to facilitate the insertion of a guidewire, which is advanced to the site of the occlusion. The atherectomy catheter, equipped with a specialized cutting piston, is used to shave away the plaque from the arterial wall. This process may require multiple passes to ensure thorough removal of the plaque. After the atherectomy is completed, a guidewire is reintroduced, and an angiography catheter is used to perform a completion angiography, confirming that the artery is open and blood flow is restored. Finally, the access artery is repaired, and the incision is closed, marking the end of the procedure.