CPT code 36476 represents an add-on endovenous radiofrequency ablation procedure used to ablate additional diseased veins in an extremity during the same session as an initial vein ablation. This code captures incremental work and resources when multiple veins are treated in one encounter and is relevant for vascular surgeons, interventional radiologists, and clinics that perform ambulatory vein procedures. Nationally, accurate reporting of add-on ablation services affects aggregated utilization metrics and reimbursement patterns for peripheral venous interventions.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for using CPT code 36476, comparisons of payer coverage approaches, and benchmarks for common billing practices. The publication highlights coding and billing considerations tied to service setting and procedure sequencing, plus policy updates and payer-specific guidance where available. The content is intended for coding professionals, revenue-cycle staff, and clinical leaders seeking a national perspective on how add-on endovenous ablation is reported and reimbursed.