CPT code 19306 represents a radical mastectomy: removal of the entire breast, nipple–areolar complex, pectoral muscles, and axillary plus internal mammary lymph nodes. As one of the most extensive breast cancer surgeries, this code signals major operative intervention and substantial postoperative resource use. Nationally, accurate coding for this procedure affects surgical quality reporting, facility and professional payment, and oncology care pathway documentation.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of coding intent and clinical context, typical sites of service, and common billing modifiers associated with major surgical procedures. The publication outlines benchmarking considerations for service lines that manage complex breast oncology cases and highlights policy and coverage topics that commonly influence authorization and payment.

This report helps clinicians, billing staff, and policy analysts by clarifying the clinical scope of CPT code 19306, summarizing payer coverage landscape, and identifying operational implications for hospitals and surgical oncology programs. Data not available in the input where specific payer policies, ICD-10 mappings, or related codes would normally be listed.