Summary & Overview
CPT 43284: Laparoscopic Magnetic Sphincter Augmentation for GERD
CPT code 43284 denotes laparoscopic implantation of a magnetic band (magnetic sphincter augmentation) at the gastroesophageal junction, often with concurrent cruroplasty to address hiatal hernia. This procedure provides a surgical option for treating gastroesophageal reflux disease (GERD) by reinforcing the lower esophageal sphincter with a magnetic device that narrows the esophagogastric junction and reduces reflux.
Payers covered in this national overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The summary highlights coverage considerations and common billing practices across major public and commercial payers, noting that specific coverage policies and prior authorization requirements can vary by payer and plan.
Readers will learn the clinical context of CPT code 43284, the typical sites of service and service type, and the policy-relevant topics to consider when billing for this procedure, including payer coverage patterns, authorization workflows, and common modifier usage. The publication also outlines benchmarks and policy updates relevant to surgical management of GERD, and provides a concise reference for coding teams and revenue cycle staff. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 43284 describes a laparoscopic implantation of a magnetic band (magnetic sphincter augmentation) around the gastroesophageal junction to narrow the opening and prevent gastroesophageal reflux (GER). The procedure may include a cruroplasty to reinforce the diaphragmatic hiatus and reduce the risk of hiatal hernia.
Service type: Minimally invasive laparoscopic anti-reflux surgery (magnetic sphincter augmentation)
Typical site of service: Hospital outpatient surgical department or ambulatory surgery center (laparoscopic operating room)
Clinical & Coding Specifications
Clinical Context
A typical patient is a 35–55-year-old adult with chronic, medically refractory gastroesophageal reflux disease (GERD) despite optimized medical therapy and lifestyle modification. The patient reports persistent heartburn, regurgitation, and/or extraesophageal symptoms (e.g., chronic cough, laryngitis) with objective confirmation of pathologic reflux on pH testing or endoscopic findings such as esophagitis and/or a sliding hiatal hernia. After multidisciplinary evaluation by a gastroenterologist and a minimally invasive surgeon, the patient is scheduled for laparoscopic implantation of a magnetic sphincter augmentation device at the gastroesophageal junction (CPT 43284).
Preoperative workflow includes history/physical, anesthesia evaluation, upper endoscopy to exclude significant esophageal pathology (severe motility disorders, large hiatal hernia) and confirm anatomy, and routine preop labs and imaging as indicated. Intraoperative steps commonly include laparoscopic access, mobilization of the distal esophagus, measurement of the esophageal circumference for device sizing, placement of the magnetic ring around the gastroesophageal junction, and optional cruroplasty (diaphragmatic hiatus repair) if a hiatal hernia is present. Postoperative care involves short-stay observation or same-day discharge depending on recovery, diet advancement from liquids to solids over weeks, pain control, and follow-up with the surgeon and gastroenterologist for symptom assessment and device function monitoring.
Coding Specifications
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