Summary & Overview
CPT 36251: Selective Renal Arteriography via Femoral Access
CPT code 36251 denotes selective renal arteriography performed via femoral arterial access to inject contrast into a single kidney’s primary renal artery for diagnostic visualization. This procedure is a key tool for identifying renal artery stenosis, occlusion, aneurysm, or thrombus and informs decisions about medical management or revascularization. Nationally, selective renal angiography remains an important imaging technique when noninvasive modalities are inconclusive or when planning endovascular intervention.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise clinical context about when and where the procedure is performed, typical sites of service, and how CPT code 36251 maps to diagnostic interventional radiology workflows. The publication also covers common billing modifiers and related coding considerations (where provided), reimbursement benchmarking across major payers, and policy updates that affect coverage and prior authorization practices. The content is intended to support billing staff, revenue analysts, and clinical leaders seeking a clear, national-level summary of coding, clinical purpose, and payer relevance for CPT code 36251.
Billing Code Overview
CPT code 36251 describes a diagnostic endovascular procedure in which a provider inserts a catheter in an artery at the groin (femoral access) and advances it to selectively inject contrast dye into the main (first-order) renal artery supplying a single kidney. The injected dye is visualized with X-ray imaging to assess the renal arterial anatomy and identify blockage, narrowing (stenosis), or thrombus.
Service type: Diagnostic angiographic procedure (selective renal angiography)
Typical site of service: Hospital catheterization laboratory or interventional radiology suite
Clinical & Coding Specifications
Clinical Context
A typical patient is a 62-year-old with uncontrolled hypertension and a recent decline in renal function who presents with suspicion for renal artery stenosis. After noninvasive testing (renal duplex ultrasound or CTA/MRA) suggests a hemodynamically significant lesion in one kidney, the interventional radiologist or vascular specialist schedules a diagnostic selective renal arteriography. The procedure is performed in an angiography suite or interventional radiology operating room. Under conscious sedation or monitored anesthesia care, vascular access is obtained—commonly via a femoral artery puncture at groin level. A catheter is advanced under fluoroscopic guidance to the renal artery origin, contrast is injected into the main renal artery (first-order vessel) to visualize luminal stenosis, occlusion, or aneurysm on real-time X-ray. Images are obtained for diagnostic interpretation and documentation. The workflow includes pre-procedure consent, contrast allergy and renal function assessment, sterile arterial access, catheter manipulation to selective renal artery position, serial angiographic image acquisition, hemostasis at access site, and post-procedure monitoring for access-site complications and contrast-related issues. The study informs decisions about percutaneous transluminal renal angioplasty/stenting, medical management, or surgical referral.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Office or other outpatient visit for evaluation and management | When reporting a separate E/M service on the same date as the procedure performed by the same provider and documentation supports it |