Summary & Overview
CPT 37216: Carotid Artery Stent Placement with Angioplasty
CPT code 37216 represents carotid artery stent placement performed under imaging guidance, with or without angioplasty, to treat carotid artery stenosis. Nationally, this code captures a high-acuity vascular intervention that affects stroke prevention strategies and procedural resource allocation in hospitals and outpatient vascular suites. Use of this code is relevant to cardiovascular and neurovascular service lines and has implications for quality reporting and utilization oversight.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The summary highlights payer coverage patterns, utilization benchmarks, and common billing considerations tied to this vascular intervention.
Readers will learn the clinical context for CPT code 37216, typical sites of service, and what to expect in payer interactions and documentation. The publication presents national benchmarks where available, summarizes relevant policy updates that impact reimbursement and prior authorization, and outlines the clinical scenarios tied to code assignment. Data not available in the input will be explicitly noted in specific sections of the full publication.
Billing Code Overview
CPT code 37216 describes placement of an intravascular stent in a cervical carotid artery under imaging guidance. The procedure can be performed percutaneously through a catheter or via an open incision and may include angioplasty to remove plaque from the arterial lining. It is performed to treat carotid artery stenosis, or narrowing of the carotid artery, to restore and maintain cerebral blood flow.
Service type: Endovascular or open carotid stent placement with possible angioplasty
Typical site of service: Hospital operating room or catheterization/electrophysiology lab; inpatient or outpatient procedural settings depending on clinical indications
Clinical & Coding Specifications
Clinical Context
A 72-year-old patient with symptomatic carotid artery stenosis presents with transient ischemic attack symptoms (transient unilateral weakness and speech disturbance). Noninvasive vascular testing and carotid duplex ultrasound demonstrate high-grade (>70%) extracranial internal carotid artery stenosis on the right. After multidisciplinary discussion, the vascular surgery and interventional neuroradiology teams schedule endovascular carotid artery stent placement. The patient arrives to the hospital on the day of procedure, is evaluated preoperatively by anesthesia, receives conscious sedation or general anesthesia based on risk and anatomy, and is prepared in an angiography suite. Under fluoroscopic and digital subtraction angiography guidance, arterial access is obtained percutaneously (commonly via common femoral artery) or via an open cervical exposure if required. The operator performs diagnostic angiography, selectively cannulates the common and internal carotid, performs balloon angioplasty as needed, deploys an intravascular stent within the cervical internal carotid artery, and obtains completion angiograms to confirm stent position and flow. Postprocedure, the patient is monitored in PACU or step-down, receives dual antiplatelet therapy per protocol, and has follow-up neurologic and vascular assessments prior to discharge.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When reporting only the physician’s professional interpretation/technical component is billed separately from facility imaging equipment charges |