HCPCS Level II code A4212 designates a non-coring needle or stylet with or without catheter used to access implanted ports and closed vascular access devices. Nationally, this code matters because it identifies a common medical supply critical to chemotherapy administration, long-term infusion therapy, and diagnostic contrast procedures. Precise coding of these supplies supports billing accuracy, inventory management, and clinical documentation across outpatient and procedural settings.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical use and typical sites of service, common billing modifiers, and payer coverage considerations. The publication summarizes benchmarks for utilization and reimbursement where available, highlights relevant policy updates affecting supply billing, and provides clinical context for when A4212 is reported on claims.

This summary is intended for billing professionals, practice managers, and clinicians seeking a national-level reference for coding and claim preparation related to vascular access supplies.