CPT® Code 37565

The procedure described by CPT® Code 37565 involves the ligation of the internal jugular vein, which is a significant blood vessel located in the neck. Ligation refers to the surgical process of tying off a vein to restrict blood flow, which can be necessary for various medical reasons. The internal jugular vein is responsible for draining blood from the brain, face, and neck, and its ligation may be indicated in cases of penetrating trauma or injury that compromises the vein's integrity. Additionally, this procedure may be performed in response to infections that affect the vein, the presence of thrombosis (a blood clot within the vein), or tinnitus that leads to hearing loss. The surgical approach typically involves making a longitudinal incision through the skin and the platysma muscle, allowing the surgeon to access the underlying sternocleidomastoid muscle. Once the muscle is retracted, the internal jugular vein is exposed, and the surgeon proceeds to tie off the vein using a suture or thin wire, effectively preventing blood flow through that vessel.