CPT code 36474 identifies percutaneous mechanochemical ablation (MOCA) of an additional incompetent extremity vein performed under imaging guidance and monitoring. The code is reported in addition to the primary MOCA code when treating one or more additional varicose veins via a separate percutaneous access. Nationally, this code matters as endovenous ablation techniques have grown as minimally invasive alternatives to open venous surgery, affecting utilization, coverage policy, and outpatient procedural workflows.

Key payers considered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical intent and typical service setting, a summary of common modifiers and billing contexts, and guidance on where to look for payer-specific coverage language. The publication also summarizes benchmarking considerations for code reporting frequency and bundling with primary venous ablation codes, notes common claim modifiers used with procedural add-on reporting, and outlines clinical context for use: targeted treatment of additional incompetent superficial veins in extremities when imaging-guided endovenous MOCA is performed.

Data not available in the input: associated taxonomies, specific ICD-10 diagnoses, related CPT codes beyond the provided code, and payer-specific reimbursement rates. The content is intended for a national audience seeking clarity on clinical billing intent and common billing practice elements for CPT code 36474.