CPT® Code 45386

A flexible colonoscopy is a diagnostic and therapeutic procedure that involves the use of a flexible tube equipped with a camera, known as a colonoscope, to visualize the interior of the colon. This procedure is specifically enhanced by the technique of transendoscopic balloon dilation, which is employed to treat strictures—narrowed areas within the colon that can impede the passage of stool and lead to various complications. Strictures may arise due to several factors, including previous surgical interventions, radiation therapy, or inflammatory diseases affecting the intestinal tract. During the procedure, the colonoscope is carefully inserted into the rectum and navigated through the colon to locate the stricture. Once identified, a specialized balloon device is introduced through the colonoscope's instrument channel and positioned at the site of the stricture. The balloon is then inflated to widen the narrowed segment of the colon, with careful monitoring of the inflation pressure to ensure optimal dilation. After the balloon is inflated for a brief period, it is deflated and removed. If multiple strictures are present, the procedure is repeated for each site, ensuring thorough treatment. Following the dilation, the physician inspects the treated areas to confirm the success of the dilation and to check for any potential injuries to the colon, thereby ensuring patient safety and procedural efficacy.