CPT code 48148 denotes surgical removal of the ampulla of Vater, a specialized operative procedure that addresses disease processes at the junction of the common bile duct and pancreatic duct. Nationally, this code represents a high-acuity surgical service typically performed in hospital operating rooms or tertiary surgical centers by hepatopancreatobiliary or general surgeons with advanced biliary expertise. It matters because ampullectomy procedures carry significant clinical complexity, perioperative risk, and resource utilization, with implications for hospital coding, payer coverage, and postoperative care pathways.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise benchmarks and context for clinical coding, an outline of expected sites of service, and guidance about where this procedure sits within surgical and billing workflows. The publication highlights clinical context for indications such as obstructive jaundice or ampullary neoplasm, typical care settings, and common billing considerations associated with operative services of this scope.

The piece is intended for revenue-cycle professionals, surgical coders, clinical leaders, and policy analysts seeking a national-level briefing on coding practice, coverage interfaces, and clinical placement of ampullary excision services.