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CPT 45385: Colonoscopy with Snare Polypectomy
Headline: CPT code 45385: Colonoscopy with snare polypectomy — diagnosis and endoscopic resection. Lead: CPT code 45385 designates a colonoscopic procedure in which a provider inspects the colon and rectum and removes tumors, polyps, or other lesions using a snare. This code captures both examination and snare-based resection and is commonly reported for therapeutic colonoscopies.
CPT code 45385 represents an important endoscopic intervention for detection and removal of colorectal lesions, which has direct implications for colorectal cancer prevention and management of benign colonic disease. Nationally, this code is central to gastroenterology, colorectal surgery, and general internal medicine procedural practice patterns.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for snare polypectomy, how this service is typically delivered in ambulatory endoscopy suites or hospital outpatient departments, and comparisons to related colonoscopy procedure codes. The publication outlines coding context, common clinical indications for use, and related procedural distinctions that affect billing and documentation. It also highlights areas where coding choice differs from adjacent services such as biopsy-only or forceps-based removal.
The piece is aimed at clinicians, coding professionals, and policy analysts seeking a concise reference on clinical intent, payer coverage scope, and coding relationships for CPT code 45385.
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Billing Code Overview
CPT code 45385 describes a diagnostic and therapeutic colonoscopy in which the provider uses a colonoscope to examine the colon and rectum and removes one or more tumors, polyps, or other lesions using a snare (a wire loop tightened around the lesion to effect resection). This procedure combines endoscopic visualization with lesion removal and is performed using a flexible, lighted scope with camera.
Service type: Endoscopic procedure with polypectomy/snare removal
Typical site of service: Ambulatory endoscopy suite or hospital outpatient department
National Reimbursement Benchmarks
Medicare's mean allowed amount of $517.70 sits between lower and higher commercial averages, while BUCA's average commercial mean of $826.50 is substantially higher than Medicare, creating a gap of $308.80. This difference highlights a common commercial-to-Medicare divergence for CPT 45385, with BUCA aligning closer to the upper commercial tier represented by payers like Blue Cross Blue Shield and UnitedHealth Group.
Dispersion measured as P75 minus P25 varies notably: Blue Cross Blue Shield shows the widest interquartile spread at $825.90 (P75 $1,408.40 minus P25 $582.50), followed by UnitedHealth Group at $457.30 and Cigna at $432.30. Aetna's spread is $311.40 and BUCA's spread is $640.00, making Blue Cross Blue Shield the most variable and Aetna the tightest among these payers.