CPT® Code 35190

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 in the cardiovascular system. If left untreated, the increased blood flow can result in various cardiovascular issues. The procedure described by CPT® Code 35190 involves the surgical repair of this fistula located in the extremities. This repair process includes the careful dissection of the fistula from surrounding tissues, isolation of the affected artery and vein, severing the fistulous connection, and subsequent repair of the vessels, which may involve sutures or the use of synthetic patches or vein grafts. Proper closure of the overlying tissues is also an essential part of the procedure, ensuring that the surgical site heals appropriately.