CPT® Code 36820

An open arteriovenous anastomosis is a surgical procedure designed to create a direct connection between an artery and a vein, specifically to facilitate hemodialysis access. This procedure is particularly important for patients with chronic kidney disease who require regular dialysis treatment. The technique involves the transposition of a vein, which is repositioned to connect with an artery, allowing for increased blood flow necessary for effective dialysis. In the case of CPT® Code 36820, the procedure focuses on the forearm vein transposition, where the basilic vein is mobilized from the wrist to the middle of the forearm. This vein is then tunneled subcutaneously and connected to either the radial artery or, less frequently, the ulnar artery. The goal of this surgical intervention is to ensure that the patient has a reliable and accessible site for hemodialysis, which is critical for their ongoing treatment and management of kidney function.