CPT® Code 43233

Esophagogastroduodenoscopy, flexible, transoral; with dilation of esophagus with balloon (30 mm diameter or larger) (includes fluoroscopic guidance, when performed)

Esophagogastroduodenoscopy (EGD) is a diagnostic and therapeutic procedure that involves the use of a flexible endoscope to visualize the upper gastrointestinal tract, including the esophagus, stomach, and duodenum. This procedure is specifically performed for the dilation of the esophagus using a balloon that is 30 mm in diameter or larger. The primary purpose of esophageal dilation is to treat strictures, which are areas of narrowing in the esophagus that can impede the passage of food and liquids. Strictures may arise from various conditions, including reflux esophagitis, which leads to inflammation and scarring of the esophagus; Schatzki's ring, a benign fibrous tissue formation; congenital esophageal atresia, a birth defect; or malignant diseases that cause obstruction. During the procedure, the endoscope is introduced transorally, allowing for a thorough examination of the velopharyngeal closure, base of the tongue, and hypopharynx. The vocal cords and pharyngeal musculature are also assessed. As the endoscope is advanced through the esophagus, any abnormalities are documented, and the procedure may include fluoroscopic guidance to assist in the dilation process. The balloon catheter is carefully positioned at the site of the stricture, inflated to the appropriate pressure, and then deflated and removed after a brief period, ensuring that the dilation is effective and that no injuries have occurred during the procedure.