Summary & Overview
CPT 47741: Combined Biliary and Gastroenteric Bypass Anastomosis
CPT code 47741 identifies a complex surgical procedure that establishes both a biliary-enteric anastomosis (gallbladder to small intestine) and a gastroenterostomy to restore bile drainage and gastric emptying when standard tumor resection is not feasible. The code is clinically significant for managing obstructive complications of advanced pancreatic or periampullary disease where palliative restoration of biliary and gastric continuity is required. Nationally, this procedure impacts hospital surgical service lines, inpatient resource utilization, and reimbursement for complex hepatobiliary operations.
Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context for why the procedure is performed, the typical inpatient setting for delivery, and the types of quality and coding considerations associated with combined biliary and gastric bypass surgery. The publication also outlines expected documentation elements, common modifier groupings (Data not available in the input), and where this service sits within surgical gastroenterology and hepatobiliary case mixes.
This summary prepares clinicians, coders, and policy analysts to understand the clinical indication, typical site of service, and payer landscape for CPT code 47741, and points to areas where more detailed payment benchmarking and policy updates would be relevant.
Billing Code Overview
CPT code 47741 describes a combined surgical bypass procedure that creates an anastomosis between the gallbladder and the small intestine (an end-to-side, Y-shaped biliary-enteric anastomosis) while also constructing a gastroenterostomy to restore gastric and biliary drainage. The procedure is typically performed to reestablish gastric emptying and bile flow when standard resections are not possible, such as with inoperable pancreatic malignancy.
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Service type: Complex open or potentially minimally invasive surgical biliary and gastric bypass (combined biliary-enteric and gastroenteric anastomosis)
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Typical site of service: Inpatient hospital operating room with postoperative inpatient recovery
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient with inoperable pancreatic head adenocarcinoma develops both obstructive jaundice from malignant biliary obstruction and symptomatic gastric outlet obstruction due to tumor involvement of the distal stomach and proximal duodenum. The surgical team elects to perform a combined biliary-enteric and gastric bypass procedure to re-establish bile drainage and restore enteric continuity. In the operating room under general anesthesia, the surgeon performs a cholecystoenterostomy (creating an end-to-side or Y-shaped anastomosis between the gallbladder and a jejunal limb) and a gastrojejunostomy (creating a new connection between the stomach and the small intestine). The goals are palliation of biliary obstruction, prevention of cholangitis and progressive jaundice, and relief of gastric outlet obstruction to allow oral intake.
Preoperative workflow includes cross-sectional imaging (CT or MRI) confirming unresectable disease and level of obstruction, laboratory evaluation including liver function tests and coagulation profile, and multidisciplinary review. Intraoperative steps include exploration, identification of viable gallbladder and gastric/jejunal segments, creation of the anastomoses (end-to-side/Y-shaped biliary-enteric and gastrojejunostomy), hemostasis, and abdominal closure. Postoperative care focuses on pain control, monitoring for bile leak or anastomotic complications, gradual reintroduction of enteral intake, and coordination with oncology and palliative care for ongoing cancer management.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
11 |