CPT® Code 37218

Transcatheter placement of intravascular stent(s), intrathoracic common carotid artery or innominate artery, open or percutaneous antegrade approach, including angioplasty, when performed, and radiological supervision and interpretation

The CPT® Code 37218 refers to the transcatheter placement of intravascular stent(s) specifically within the intrathoracic common carotid artery or the innominate artery, which is also known as the brachiocephalic trunk. This procedure can be performed using either an open or a percutaneous antegrade approach. The term "transcatheter" indicates that the procedure is conducted through a catheter, which is a thin, flexible tube used to access the vascular system. The common carotid artery is a major blood vessel that supplies oxygenated blood to the head and neck, while the innominate artery branches off from the aortic arch to supply blood to the right arm, head, and neck. During the procedure, the clinician may perform angioplasty, which involves the use of a balloon to widen narrowed or obstructed blood vessels, in conjunction with the stent placement. Radiological supervision and interpretation are integral components of this procedure, ensuring that the placement of the stent is accurately guided and monitored through imaging techniques. The approach to access the femoral vein is critical, as it serves as the entry point for the catheter system. The procedure aims to alleviate stenosis, or narrowing, in these vital arteries, thereby improving blood flow and reducing the risk of complications associated with vascular occlusion.