CPT® Code 37600

The procedure described by CPT® Code 37600 refers to the ligation of the external carotid artery, which is a surgical intervention aimed at occluding this major artery. The external carotid artery is responsible for supplying blood to various structures in the head and neck, including the face and scalp. Ligation of this artery may be indicated in several clinical scenarios, such as penetrating trauma that compromises the integrity of the artery, infections that may lead to severe complications, thrombosis that obstructs blood flow, or significant hemorrhage from nasal or other sources. Additionally, this procedure may be necessary in cases of tumor invasion or vascular malformations that pose a risk to the patient’s health. The surgical technique involves making a longitudinal incision through the skin and soft tissue to access the artery, which is then carefully exposed. Once the external carotid artery is identified, it is tied off, or ligated, using a suture or thin wire to prevent blood flow, thereby addressing the underlying medical issue.