Summary & Overview
CPT 43277: ERCP with Radiologic Assessment and Balloon Dilation
CPT code 43277 represents an endoscopic retrograde cholangiopancreatography (ERCP) procedure that combines endoscopic inspection of the duodenum and papilla of Vater with radiologic evaluation of the pancreatic and biliary ducts and balloon dilation of a duct or the ampulla. This procedure is clinically significant for the diagnosis and treatment of obstructive or strictured pancreaticobiliary disorders and is commonly used when therapeutic intervention is indicated during diagnostic ERCP. Nationally, ERCP with dilation is an important component of advanced endoscopy services delivered in outpatient surgery centers and hospital outpatient departments and is relevant for payer policy, network contracting, and resource planning.
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, expected sites of service, and common billing considerations for CPT code 43277. The publication summarizes benchmarking elements such as typical utilization settings and payer coverage themes, highlights relevant policy considerations that affect authorization and coding practice, and provides clinical context describing when balloon dilation during ERCP is performed. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 43277 describes an endoscopic retrograde cholangiopancreatography (ERCP) procedure with balloon dilation of a duct or the ampulla. The procedure includes endoscopic inspection of the duodenum and the papilla of Vater, followed by radiologic assessment of the pancreatic duct and the biliary tree, with balloon dilation performed by the physician.
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Service type: Diagnostic and therapeutic endoscopic procedure involving radiologic assessment and balloon dilation of the pancreaticobiliary ducts
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Typical site of service: Hospital outpatient department or ambulatory surgery center; may also be performed in endoscopy suites within acute care hospitals
Clinical & Coding Specifications
Clinical Context
An adult patient presents with obstructive jaundice, right upper quadrant abdominal pain, and abnormal liver function tests suggesting biliary obstruction. Imaging with abdominal ultrasound and/or MRCP demonstrates a dilated common bile duct with choledocholithiasis suspected. The patient is scheduled for endoscopic retrograde cholangiopancreatography (ERCP) with therapeutic intervention.
The clinical workflow: pre-procedure informed consent and review of anticoagulation status; moderate sedation or monitored anesthesia care is arranged depending on comorbidity; the gastroenterologist performs endoscopic inspection of the duodenum and identifies the ampulla of Vater; cannulation of the biliary tree is achieved and radiologic contrast injection visualizes the biliary and pancreatic ducts; therapeutic maneuvers include balloon dilation of the ampulla or duct to facilitate stone extraction or stent placement; fluoroscopic images are obtained and documented; post-procedure recovery includes monitoring for pancreatitis, bleeding, perforation, or cholangitis and discharge instructions with follow-up planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier required / default | Rarely appended; code reported as usual without special circumstances |