CPT 37215 Carotid Stent Reimbursement & Policy | OpenPayer

Summary & Overview

CPT 37215: Carotid Artery Stent Placement with Embolic Protection

CPT code 37215 describes endovascular or open placement of an intravascular stent in a cervical carotid artery with concurrent placement of an embolic protection device, often with adjunct angioplasty to treat carotid artery stenosis. This intervention is a key therapeutic option to reduce stroke risk in patients with significant carotid narrowing and is commonly billed in hospital-based interventional radiology, vascular surgery, or catheterization settings. Nationally, utilization and reimbursement for carotid stenting are relevant to health plans, Medicare policy, and hospital finance because the procedure is resource-intensive and associated with distinct device and imaging costs.

This publication examines coverage and payment considerations for major national payers: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context, typical sites of service, common billing nuances, and comparative benchmarks where available. The analysis highlights payer coverage patterns, credentialing and site-of-service implications, and coding considerations that affect payment variability. Data not available in the input are noted where applicable. The content is intended for clinicians, billing professionals, and policy analysts seeking a concise reference on coding, billing context, and payer coverage considerations for carotid stent procedures.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare37215CPTcarotid stentendovascularembolic protectionangioplastyvascular surgeryinterventional radiology

Billing Code Overview

CPT code 37215 describes placement of an intravascular stent in a cervical carotid artery with imaging guidance. The procedure includes placement of an embolic protection device prior to stent deployment and may include angioplasty (removal or compression of plaque) as part of treatment for carotid artery stenosis. The provider confirms device placement with imaging or angiography.

Service type: Endovascular carotid stent placement with embolic protection (may be percutaneous or via open incision)
Typical site of service: Hospital inpatient or outpatient interventional radiology/vascular surgery suite or catheterization lab

Clinical & Coding Specifications

Clinical Context

A 72-year-old male with symptomatic high-grade left internal carotid artery stenosis presents with transient ischemic attacks characterized by brief right-sided weakness and aphasia. After vascular surgery and neurology evaluation including carotid duplex ultrasound and CT angiography confirming 80% focal stenosis of the left cervical internal carotid artery, the patient is scheduled for carotid artery stenting with embolic protection. The procedure is performed in a hospital catheterization laboratory or hybrid operating room under conscious sedation or general anesthesia. Vascular access is obtained percutaneously via the common femoral artery (or via radial or direct carotid exposure if clinically indicated). An embolic protection device is placed distal to the stenosis, and angioplasty with balloon dilation and deployment of an intravascular stent in the cervical carotid artery is performed under fluoroscopic imaging with digital subtraction angiography to confirm position and flow restoration. Post‑procedure, the patient is monitored in a post-anesthesia care unit or step-down unit with neurologic checks, vascular access site assessment, and dual antiplatelet therapy initiated per the treating physician’s protocol.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when billing only the physician’s interpretation/reading of imaging or radiologic supervision when the technical component is billed separately.

CPT 37192: Image-Guided Repositioning of IVC Filter

CPT-37214-CATHETER-DIRECTED-THROMBOLYTIC-INFUSION

CPT 37214: Catheter-Directed Thrombolytic Infusion

CPT-37191-INFERIOR-VENA-CAVA-FILTER-PLACEMENT

CPT 37191: Inferior Vena Cava Filter Placement

CPT-37200-TRANSCATHETER-VASCULAR-BIOPSY

CPT 37200: Transcatheter Vascular Biopsy, Intravascular Tissue Sampling

CPT-37218-INTRATHORACIC-CAROTID-INNOMINATE-ARTERY-STENT-PLACEMENT

CPT 37218: Intrathoracic Common Carotid or Innominate Artery Stent Placement

CPT-37193-IVC-FILTER-REMOVAL-PERCUTANEOUS

CPT 37193: Percutaneous Removal of Inferior Vena Cava Filter

CPT-37213-CATHETER-DIRECTED-THROMBOLYTIC-INFUSION

CPT 37213: Catheter-Directed Thrombolytic Infusion

CPT-37216-CAROTID-ARTERY-STENT-PLACEMENT-ANGIOPLASTY

CPT 37216: Carotid Artery Stent Placement with Angioplasty

CPT-37217-TRANSCATHETER-STENT-PLACEMENT-CAROTID-INNOMINATE-RETROGRADE-CERVICAL-APPROACH

CPT 37217: Transcatheter Stent Placement, Intrathoracic Carotid/Innominate

CPT-37197-PERCUTANEOUS-ENDOVASCULAR-FOREIGN-BODY-REMOVAL

CPT 37197: Percutaneous Endovascular Foreign Body Removal

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Taxonomy Code	Specialty	Notes
`208BF0000X`	Vascular Surgery	Primary specialty performing carotid stenting in open or hybrid approaches.
`207RG0400X`	Interventional Cardiology	Performs percutaneous carotid stenting in catheterization labs.
`2084P0800X`	Interventional Radiology	Image-guided endovascular stent placement and embolic protection device deployment.
`207RC0000X`	Neurology (Vascular Neurology)	Provides peri-procedural neurologic assessment and stroke management.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I65.21`	Occlusion and stenosis of left carotid artery	Direct indication for carotid stenting when causing symptomatic cerebral ischemia.
`I65.22`	Occlusion and stenosis of right carotid artery	Right-sided carotid disease requiring stenting when symptomatic or high-risk.
`I63.9`	Cerebral infarction, unspecified	Represents ischemic stroke related to carotid atherosclerotic disease prompting revascularization.
`G45.9`	Transient ischemic attack, unspecified	TIAs are common indications for carotid revascularization including stenting.
`I70.0`	Atherosclerosis of aorta	Atherosclerotic disease context; systemic atherosclerosis often coexists with carotid stenosis.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`36215`	Selective catheter placement, carotid, cervical, unilateral, each additional branch, when performed	Commonly performed for diagnostic selective catheterization or to access branches during endovascular treatment prior to stent placement.
`36216`	Selective catheter placement, carotid, cervical, with embolization, when performed (note: use appropriate embolization code)	Performed when adjunctive embolization procedures are required; may be used if embolization of branch vessels is undertaken.
`92928`	Percutaneous transcatheter placement of intracoronary stent(s), with angioplasty when performed; initial vessel (used here only as analogous code)	Analogous to stent placement technique and device reporting; not specific to carotid but conceptually related intravascular stent deployment coding.
`75894`	Angiography, vascular, intraprocedural, radiological supervision and interpretation	Used to report the imaging supervision and interpretation associated with endovascular procedures such as carotid stent placement.
`37184`	Endovascular repair, open or percutaneous, other peripheral arteries, with stent graft	May be reported for peripheral arterial stent procedures in the same session if clinically indicated.

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