Summary & Overview
CPT 33894: Endovascular Stent Placement for Aortic Coarctation
CPT code 33894 represents a minimally invasive endovascular procedure in which a stent is placed across one or more major side branches of the aorta to treat coarctation, a congenital narrowing that can impair systemic blood flow. The code captures a specialized interventional cardiology or vascular surgery service that carries implications for procedural planning, device selection, and site-of-service billing. Nationally, use of this code signals access to catheter-based treatments for congenital aortic disease and affects payment policy and device coverage decisions.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and service settings, and will learn what benchmarks and policy considerations typically relate to this type of high-acuity vascular intervention. The publication outlines coding definitions, common modifiers, and payer coverage patterns where available, and provides guidance on where to look for reimbursement and prior authorization policy updates. Data not available in the input is explicitly noted where applicable.
Billing Code Overview
CPT code 33894 describes a minimally invasive stent placement across one or more major side branches of the aorta to treat coarctation, a congenital narrowing of the aorta. The procedure involves endovascular placement of a stent (tube) to widen the narrowed segment and restore normal blood flow.
Service Type: Endovascular stent placement for aortic coarctation (minimally invasive vascular intervention)
Typical Site of Service: Hospital outpatient department or catheterization / interventional radiology suite
Clinical & Coding Specifications
Clinical Context
A typical patient is an adolescent or adult with native or recurrent aortic coarctation presenting with systemic hypertension, limb claudication, or differential blood pressures between upper and lower extremities. Imaging (echocardiography, CT angiography, or MR angiography) confirms a discrete narrowing of the aortic isthmus or major aortic side branch suitable for endovascular therapy. The clinical workflow generally includes pre-procedure evaluation (cardiology or cardiothoracic surgery consultation, vascular access planning, antiplatelet and anticoagulation review), informed consent, percutaneous arterial access (usually femoral), intraprocedural angiography, crossing the lesion with guidewires, balloon angioplasty as needed, and deployment of a covered or bare-metal stent across the coarctation. Post-deployment angiography documents stent position and flow. Patients are monitored in a recovery area or inpatient setting depending on complexity and comorbidities, with follow-up imaging scheduled to assess stent integrity and gradient reduction.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Procedure is performed in a hospital outpatient or ambulatory setting (no distinct meaning in CMS; used by some payors) | Apply per payer rules when required to indicate standard facility service; verify payor guidance. |