Summary & Overview
HCPCS C9784: Endoscopic Sleeve Gastroplasty with EGD
HCPCS Level II code C9784 designates endoscopic sleeve gastroplasty (ESG), a gastric restrictive procedure performed via esophagogastroduodenoscopy and intraluminal device placement, including all anchoring components. This code captures a minimally invasive alternative to surgical sleeve gastrectomy that has national relevance due to rising demand for bariatric therapies, evolving coverage policies, and increasing use of endoscopic approaches in weight-management care.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of procedural intent and clinical context, plus a summary of payer coverage considerations and typical sites of service. The publication outlines benchmarks and reimbursement context where available, highlights policy updates affecting coverage decisions, and situates C9784 within broader trends toward endoscopic bariatric interventions.
This analysis is intended for clinicians, billing specialists, and policy stakeholders seeking a national perspective on coding and coverage for endoscopic sleeve gastroplasty. Data not available in the input is explicitly noted where applicable.
Billing Code Overview
HCPCS Level II code C9784 describes a gastric restrictive procedure, endoscopic sleeve gastroplasty, performed with esophagogastroduodenoscopy and intraluminal tube insertion when performed. The procedure includes all system and tissue anchoring components required to create a gastric sleeve endoscopically.
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Service type: Endoscopic, minimally invasive bariatric procedure
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Typical site of service: Ambulatory surgical center or hospital outpatient department, performed by gastroenterology or bariatric endoscopy teams
Clinical & Coding Specifications
Clinical Context
A 42-year-old patient with morbid obesity and failed conservative weight-loss measures is scheduled for an endoscopic sleeve gastroplasty. The patient presents after multidisciplinary evaluation by bariatric medicine and gastroenterology teams, meeting criteria for endoscopic gastric restriction. Pre-procedure workup includes history and physical, anesthesia assessment, lab testing, and an esophagogastroduodenoscopy (EGD) for mucosal inspection. Under general anesthesia with endotracheal intubation in an endoscopy suite or ambulatory surgery center, the gastroenterologist performs an EGD and introduces the endoscopic suturing device and intraluminal tube if required. Serial plications are created to reduce gastric volume, with system and tissue anchoring components deployed as described by the billing code. The patient is recovered in PACU, provided post-procedure dietary and activity instructions, and scheduled for follow-up with the bariatric team for nutrition counseling and outcome monitoring.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required to perform the procedure is substantially greater than typically required due to complexity. |
23 | Unusual anesthesia |