CPT® Code 44364

Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

The CPT® Code 44364 refers to a specific medical procedure known as small intestinal endoscopy, particularly focusing on enteroscopy that extends beyond the second portion of the duodenum, excluding the ileum. This procedure involves the endoscopic examination of the small intestine, where the physician inspects the mucosal surfaces for any abnormalities. During this examination, the physician may encounter tumors, polyps, or other lesions that require removal. The removal is accomplished using a snare technique, which involves placing a wire snare loop around the lesion and applying heat to shave off and cauterize it. This technique allows for the complete excision of the lesion, either in one piece or in a piecemeal manner, depending on the size and nature of the lesion. The procedure is performed with the patient under local anesthesia, where the mouth and throat are numbed to facilitate the insertion of a flexible fiberoptic endoscope. The endoscope is advanced through the gastrointestinal tract, allowing for direct visualization of the duodenum and potentially the jejunum, while ensuring that the ileum is not included in this specific procedure. The use of this code indicates a comprehensive approach to diagnosing and treating conditions affecting the small intestine, particularly through minimally invasive techniques.