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CPT 51040: Cystostomy/Cystotomy with Drainage
CPT code 51040 denotes a cystostomy or cystotomy with drainage — a urologic surgical procedure to create bladder drainage for urinary diversion or decompression. Nationally, this code is relevant for acute care hospitals, ambulatory surgical centers, and procedural suites where bladder drainage is required for obstruction, injury, infection complications, or perioperative management. Proper coding affects claims processing, site-of-service attribution, and clinical documentation for urology services.
Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context for the procedure, common sites of service, typical billing considerations, and payer coverage landscape. The publication summarizes benchmark metrics and common claim-level considerations where available, highlights relevant policy updates affecting surgical urology services, and outlines documentation elements that support medical necessity for drainage procedures.
This material is designed for billing managers, revenue cycle staff, and clinical leaders seeking a national view of how CPT code 51040 is used in practice and the payer environment that governs reimbursement and coverage.
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Billing Code Overview
CPT code 51040 describes a cystostomy/cystotomy with drainage, a surgical procedure that creates an opening into the urinary bladder to allow drainage. The procedure entails incision of the bladder (cystotomy) or creation of a stoma (cystostomy) to provide temporary or ongoing urinary diversion and drainage.
Service type: Surgical, genitourinary (urology) procedure
Typical site of service: Operating room or procedural suite within a hospital or ambulatory surgical center; may also be performed at bedside if clinical circumstances require drainage placement in an acute care setting.