CPT® Code 44405

A colonoscopy through stoma with transendoscopic balloon dilation is a specialized procedure that involves the examination and treatment of the colon via an existing stoma, such as a colostomy. During this procedure, a flexible tube known as an endoscope is inserted through the stoma to visualize the mucosal surfaces of the colon, extending from the stoma to the cecum or a small intestine anastomosis. The primary goal is to inspect for any abnormalities, such as strictures or lesions, that may be present in the colon. Once the endoscope is in place, the physician carefully examines the entire circumference of the colon, noting any irregularities. If a narrowed area, or stricture, is identified, a balloon dilation technique is employed to widen this constricted segment. This involves advancing a deflated balloon catheter through the endoscope's instrument channel to the site of the stricture. The balloon is then inflated to a predetermined pressure, which is monitored using a pressure gauge, to ensure optimal dilation. The balloon remains inflated for a brief period, typically between 30 seconds to 2 minutes, before being deflated and removed. After the dilation process, the physician re-inspects the area to confirm the success of the dilation and to check for any potential injuries to the colon, ensuring patient safety and the effectiveness of the procedure.