Summary & Overview
CPT 47537: Image-Guided Biliary Drainage Catheter Removal
CPT code 47537 represents the radiology-guided removal of a biliary drainage catheter, often performed with ultrasound and fluoroscopy and potentially including cholangiography. This interventional radiology service matters nationally because it addresses postoperative and chronic biliary drainage management, impacts resource use in outpatient imaging suites and hospitals, and intersects with quality and utilization oversight for procedural imaging. Key payers referenced in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will find a concise clinical and billing overview of the procedure, typical sites of service, common modifiers and coding considerations, and the types of benchmarks and policy issues that influence coverage and reimbursement. The publication outlines how the procedure is documented, the role of imaging supervision and interpretation, and the implications for outpatient interventional radiology workflows. Data not available in the input is noted where applicable, and the report focuses on national payer practices and clinical context rather than state-specific rules.
Billing Code Overview
CPT code 47537 describes the image-guided removal of a biliary drainage catheter, using fluoroscopy and/or ultrasound. The procedure may include cholangiography and covers radiological supervision and interpretation associated with safe catheter extraction while preserving any indwelling biliary stents needed to maintain ductal patency.
-
Service type: Image-guided interventional radiology procedure for biliary catheter removal
-
Typical site of service: Hospital outpatient department or ambulatory surgical center with interventional radiology capabilities
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with a percutaneous transhepatic biliary drainage catheter placed for obstructive jaundice secondary to a malignant biliary stricture presents for outpatient catheter removal. The interventional radiology team reviews recent liver function tests and cross-sectional imaging, confirms patency of internal biliary stents on prior cholangiography, and schedules image-guided catheter removal using fluoroscopy with optional ultrasound localization. On the day of service the patient is positioned in the procedure suite, conscious sedation is administered per institutional protocol, and the interventional radiologist performs contrast cholangiography through the existing catheter to confirm biliary anatomy and stent position before gently withdrawing the drainage catheter under live fluoroscopic visualization. Post-procedure radiological supervision and interpretation are documented, and the patient is monitored for immediate complications such as bleeding or bile leak prior to discharge.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation component separate from technical facility charges. |
52 | Reduced services |