CPT® Code 44379

Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, including ileum; with transendoscopic stent placement (includes predilation)

A small intestinal endoscopy, specifically an enteroscopy, is a procedure that allows for the examination of the small intestine beyond the second portion of the duodenum, which includes the ileum. This procedure is performed using a flexible fiberoptic endoscope, a specialized instrument that provides visualization of the intestinal mucosa. During the procedure, the patient's mouth and throat are numbed with an anesthetic spray to minimize discomfort. A hollow mouthpiece is inserted to facilitate the passage of the endoscope, which is then advanced through the esophagus and into the stomach, and subsequently into the duodenum. The endoscope is carefully guided into the small intestine, where the mucosal surfaces of the duodenum, jejunum, and ileum are thoroughly inspected for any abnormalities, such as lesions or strictures. If a stenosis, or narrowing, is identified, the area may be predilated to prepare for stent placement. The procedure includes the selection and deployment of a transendoscopic stent, which is introduced through the endoscope and positioned in the narrowed segment of the small intestine to alleviate obstruction. Additionally, radiographs may be obtained to assess the stent's expansion and ensure its proper placement within the intestinal lumen.