CPT® Code 35189

An acquired or traumatic arteriovenous fistula is a pathological condition characterized by an abnormal connection between an artery and a vein, which can occur due to trauma or injury to blood vessels. This condition may manifest immediately following the injury or develop gradually over time. The presence of this abnormal communication allows blood to flow from the artery, which operates under high pressure, directly into the vein. Since the walls of veins are not designed to withstand such high-pressure blood flow, they can become distended and enlarged, leading to further complications. Over time, the increased volume of blood flowing into the venous system can result in various cardiovascular issues. The procedure coded as CPT® 35189 involves the surgical repair of this fistula located in the thorax and abdomen. This repair is critical to restore normal blood flow and prevent potential complications associated with the fistula. Additionally, the procedure may involve the use of angiography to visualize the fistula's course, ensuring precise surgical intervention. The surgical steps include isolating the fistula, severing the abnormal connection, and repairing the affected vessels, which may involve sutures or the use of synthetic materials. This comprehensive approach aims to restore vascular integrity and function.