Summary & Overview
CPT 43233: Upper Endoscopy with Esophageal Balloon Dilation ≥30 mm
CPT code 43233 represents endoscopic esophageal balloon dilation during an upper endoscopy, using a balloon inflated to 30 mm or more. This therapeutic endoscopy is a key procedure for treating symptomatic esophageal strictures and obstructive lesions and is commonly performed in hospital outpatient departments, ambulatory surgery centers, and endoscopy suites. Nationally, the code is significant because it captures higher-diameter balloon dilations that may be billed differently than smaller-diameter or non-balloon dilation techniques.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical service captured by CPT code 43233, typical sites of service, and the context for billing and coverage considerations across major national payers. The publication provides benchmarks and payer policy summaries where available, highlights clinical scenarios that commonly drive use of this code, and outlines coding distinctions that affect claims processing and reimbursement. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 43233 describes an upper gastrointestinal endoscopy with esophageal balloon dilation using a balloon inflated to 30 mm or greater in diameter. The procedure involves insertion of a flexible endoscope through the mouth into the esophagus, stomach, and duodenum, with dilation of the esophagus performed via an intraluminal balloon. Fluoroscopic guidance may be used as part of the dilation when clinically indicated.
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Service type: Endoscopic esophageal dilation with balloon (therapeutic endoscopy)
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Typical site of service: Hospital outpatient department, ambulatory surgery center, or endoscopy suite
Clinical & Coding Specifications
Clinical Context
A 58-year-old male presents with progressive dysphagia to solids and intermittent regurgitation. He has a history of long-standing gastroesophageal reflux disease and recent endoscopic findings of a peptic stricture in the distal esophagus. After failed serial bougie dilations with persistent symptoms and a documented tight stricture measuring less than 12 mm, the gastroenterologist schedules an endoscopic balloon dilation using fluoroscopic guidance. The patient arrives to an ambulatory endoscopy suite after pre-procedure evaluation confirming fasting status and appropriate informed consent. Under monitored anesthesia care, a flexible endoscope is introduced per orally and advanced to the stricture. A through-the-scope or over-the-wire balloon dilator is positioned across the stenotic segment and inflated gradually to a diameter of 30 mm or greater with fluoroscopic confirmation of balloon location and waist effacement. Hemostasis is assessed, and the patient is observed in recovery for immediate complications such as chest pain, bleeding, or signs of perforation before discharge with post-procedure instructions and follow-up.
Coding Specifications
- The following modifiers are most clinically relevant to
43233. Use clinical judgment and payer rules when appending modifiers.
| Modifier | Description | When to Use |
|---|---|---|
59 | Distinct procedural service |