Clinical Context
A typical patient is a 70-year-old man with symptomatic high-grade atherosclerotic stenosis of the proximal common carotid arteries or recurrent embolic events despite medical therapy who is scheduled for percutaneous bilateral placement of a permanent common carotid embolic protection device. The patient undergoes pre-procedure evaluation including neurological assessment, carotid duplex ultrasound, CT angiography of the neck and head, and review of antiplatelet/anticoagulant medications. In the interventional suite under conscious sedation or general anesthesia, vascular access (usually via common femoral artery or radial artery) is obtained, diagnostic angiography is performed to confirm lesion anatomy, and intraprocedural fluoroscopic and angiographic imaging guide device deployment. The procedure includes placement of the permanent embolic protection systems in both common carotid arteries to reduce risk of distal embolization during subsequent interventions or high-risk periods, with completion angiography to document device position and vessel patency. Post-procedure monitoring in a recovery area includes neurological checks, access site evaluation, and antiplatelet therapy management prior to discharge or admission for observation.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
37215 | Transcatheter placement of intra-arterial stent(s), other than coronary, including angioplasty when performed; initial vessel | May be performed before or after embolic protection device placement if stenting of the carotid artery is indicated. |
36215 | Selective catheterization, carotid, unilateral, with diagnostic angiography | Diagnostic carotid angiography to define lesion anatomy and guide device placement.
36216 | Selective catheterization, carotid, bilateral, with diagnostic angiography | Bilateral diagnostic angiography when both common carotid arteries are evaluated prior to bilateral device placement.
76937 | Ultrasound guidance for vascular access (e.g., arterial) | Ultrasound guidance for arterial access used during percutaneous carotid device placement.
93458 | Catheter placement, central venous or arterial, radiological supervision and interpretation | Radiologic supervision and/or advanced imaging guidance codes used when complex imaging guidance is required during device deployment.