CPT® Code 37609

The procedure described by CPT® Code 37609 involves the ligation or biopsy of the temporal artery, which is situated on the temples of the head. This procedure is primarily performed to diagnose temporal arteritis, a serious inflammatory condition affecting the temporal arteries and potentially other arteries in the neck and arms. Temporal arteritis, also known as giant cell arteritis or cranial arteritis, can lead to severe complications, including sudden and permanent bilateral blindness if not treated promptly. During the procedure, the skin over the temporal artery is first disinfected to minimize the risk of infection. A small incision is then made directly over the artery to allow access. The artery is carefully mobilized, and sutures are placed to ligate the artery both proximal and distal to the site where the biopsy will occur. A segment of the temporal artery is excised and sent to a laboratory for histological analysis, which is essential for confirming the diagnosis. In cases where only ligation is performed, the procedure follows a similar technique, but no segment of the artery is removed. Ligation may be indicated for various conditions, including arteriovenous malformations, aneurysms, or hemorrhages, where controlling blood flow is necessary.