Summary & Overview
CPT 49426: Repair or Replacement of Peritoneal Venous Shunt
CPT code 49426 represents the surgical repair or replacement of an existing peritoneal venous shunt identified as malfunctioning. This procedure addresses device failure, obstruction, leakage, or other shunt-related complications that require operative intervention. Nationally, procedures to correct implanted vascular shunts are significant for hospitals and surgical centers due to their implications for patient safety, device management, and post-procedure resource use.
Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The content outlines coverage and billing considerations as they typically relate to these national payers and public programs.
Readers will find a concise clinical and coding overview, typical sites of service, and expected service descriptors for CPT code 49426. The publication also summarizes benchmarks where available, highlights relevant policy or coverage issues that commonly affect claims for shunt repair or replacement, and explains clinical context such as indications for intervention. Data not available in the input is noted where applicable. The goal is to provide clinicians, coders, and policy professionals a clear national-level reference for identifying when CPT code 49426 applies and what dimensions of coverage and documentation are most often relevant.
Billing Code Overview
CPT code 49426 describes a procedure in which a provider repairs or replaces an existing peritoneal venous shunt after identifying a problem in the implanted device. This service is surgical correction of an existing peritoneal venous shunt and typically involves operative exploration, repair of malfunctioning components, or replacement of portions of the shunt system.
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Service type: Surgical repair or replacement of an implanted peritoneal venous shunt
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Typical site of service: Hospital operating room or ambulatory surgical center
Clinical & Coding Specifications
Clinical Context
A 58-year-old patient with a previously placed peritoneovenous (Denver-type) shunt for refractory ascites presents with signs of shunt malfunction: recurrent abdominal distension, increasing lower extremity edema, and hypotension. Imaging (abdominal ultrasound and shunt series) demonstrates discontinuity of the subcutaneous tubing and proximal catheter migration with impaired flow. The interventional surgeon evaluates the patient in the hospital setting, confirms a mechanical failure of the existing shunt, and schedules operative repair/replacement. Under general anesthesia in an operating room, the surgeon exposes the existing shunt tract, identifies the defective segment, removes or replaces the damaged tubing and/or valve, reinstalls secure catheter connections and tests patency before closure. Postoperative care includes monitoring fluid balance, vital signs, and signs of infection; the patient typically remains in the hospital for observation until hemodynamically stable and ascites control is confirmed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Service not specified in other modifiers (placeholder) | Rarely used; included when no other modifier applies and payer requires a default code. |
11 |