Summary & Overview
CPT 36466: Ultrasound-Guided Foam Sclerotherapy for Multiple Truncal Veins
CPT code 36466 captures ultrasound-guided injection of a noncompounded foam sclerosing solution into multiple incompetent truncal veins of the same leg, a minimally invasive treatment commonly used for symptomatic varicose veins. The code matters nationally because varicose vein treatments are widespread in outpatient vascular and ambulatory surgery settings, and accurate coding affects claim adjudication, coverage determinations, and utilization tracking.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for foam sclerotherapy, how CPT code 36466 is positioned relative to other venous procedure codes, and the typical sites of service where the procedure is performed. The publication also summarizes common coding considerations, payer coverage patterns, and benchmarking context where available. Data not available in the input is noted where applicable.
This executive summary provides clinicians, billers, and policy analysts a concise guide to the purpose and national relevance of CPT code 36466, helping stakeholders identify where to look for payer-specific policies, prior authorization requirements, and billing nuances for image-guided foam sclerotherapy.
Billing Code Overview
CPT code 36466 describes injection of a noncompounded foam sclerosing solution into multiple incompetent truncal veins under ultrasound guidance to direct dispersion of foam, most commonly for treatment of varicose veins. The procedure is intended for multiple incompetent truncal veins of the same leg and uses ultrasound to guide injection and visualize foam dispersion.
Service type: Image-guided endovenous foam sclerotherapy.
Typical site of service: Outpatient vascular clinic or ambulatory surgical center, where ultrasound guidance and routine vascular procedures are performed.
Clinical & Coding Specifications
Clinical Context
A 52-year-old ambulatory patient presents to an outpatient vascular clinic with symptomatic varicose veins of the right lower extremity causing aching, swelling, and cosmetic concern. Duplex ultrasound demonstrates multiple incompetent truncal veins (great saphenous and accessory saphenous branches) with reflux. After conservative management fails, the vascular specialist schedules an office-based ultrasound-guided foam sclerotherapy session. Under sterile conditions in an ambulatory procedure room, the provider uses real-time ultrasound to identify target segments, injects a noncompounded foam sclerosing agent into multiple incompetent truncal veins of the same leg, and monitors foam dispersion to ensure adequate sclerosis while avoiding deep venous system entry. Post-procedure, the patient is observed briefly, fitted with compression stockings, instructed on activity restrictions, and scheduled for follow-up duplex ultrasound to document vein closure and assess for complications.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 | Normally Scheduled Service | Use when the procedure is performed as scheduled and without complications or unusual circumstances. |
22 | Increased Procedural Services |