CPT code 48540 represents a surgical cyst-enterostomy procedure that creates an internal drainage pathway between a pancreatic cyst and the gastrointestinal tract, most commonly the small intestine, often fashioned in a Y-shaped configuration. Nationally, this code matters for management of symptomatic or complicated pancreatic cysts where internal drainage reduces pain and decreases risk of rupture or hemorrhage. It is relevant to surgical, gastroenterology, and hospital billing workflows.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, common billing modifiers, and payer coverage considerations. The publication provides benchmark-oriented metrics and policy updates where available, along with coding guidance to support accurate service-line reporting. It also summarizes expected clinical indications and how the procedure fits into care pathways for pancreatic cyst management.

This summary is written for a national audience of coders, billing managers, clinicians, and policy analysts seeking a clear, practical understanding of CPT code 48540, its clinical role, and the payer landscape that influences billing and reimbursement practices.