Summary & Overview
CPT 49451: Fluoroscopic Duodenostomy/Jejunostomy Tube Replacement
CPT code 49451 covers fluoroscopically guided replacement of an existing duodenostomy or jejunostomy tube through the skin. This procedure is a common interventional radiology service used to restore enteric access when feeding or drainage tubes become dislodged, blocked, or otherwise nonfunctional. Nationally, appropriate coding for 49451 affects inpatient and outpatient radiology billing, procedural tracking, and quality measurement for enteric access management.
Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context about when tube exchanges are performed, typical settings of care, and how 49451 fits into procedural documentation and reimbursement workflows. The publication also provides national benchmarks, payer-specific coverage notes where available, and recent policy updates that influence prior authorization and medical necessity reviews.
This summary prepares clinicians, coding professionals, and health plan analysts to understand the scope of 49451, relevant billing considerations, and the operational settings where the service is most frequently delivered. Data not available in the input is noted directly in relevant sections.
Billing Code Overview
CPT code 49451 describes the fluoroscopic replacement of an existing duodenostomy or jejunostomy tube through the skin. The procedure is performed when the existing tube becomes dislodged or no longer functions properly and requires exchange under imaging guidance.
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Service type: Image-guided gastrointestinal tube exchange
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Typical site of service: Hospital radiology suite or outpatient interventional radiology setting
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with a history of head and neck cancer treated with surgery and radiation presents to the interventional radiology suite after his long-standing radiologically-placed jejunostomy tube becomes dislodged and no longer drains enteral formula. The patient has persistent malnutrition and requires continued enteral access for nutrition and medication administration. After review of recent abdominal radiographs to confirm tube position and assess for retained fragments, the interventional radiologist performs an exchange of the existing jejunostomy tube under fluoroscopic guidance using the existing cutaneous tract. Local anesthesia and conscious sedation are administered by the procedural team. The procedure includes removal of the nonfunctional tube, tract cannulation, contrast injection under fluoroscopy to confirm jejunal location, and placement of a replacement jejunostomy tube with internal retention mechanism. Post-procedure images confirm appropriate intraluminal placement and no immediate complications. The patient is observed in the recovery area, provided tube care and use instructions, and discharged home in stable condition with follow-up arranged.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
52 | Reduced services | When the exchange is performed but substantially fewer services are provided than typical (for example, limited fluoroscopic imaging due to anatomy). |