CPT® Code 45307

A rigid proctosigmoidoscopy is a diagnostic and therapeutic procedure that involves the examination of the rectum and the lower part of the colon (sigmoid) using a rigid scope. This procedure is specifically performed when there is a need to remove a foreign body that has become lodged within the rectum. The process begins with the insertion of an obturator into the proctosigmoidoscope, which is then introduced into the anus and advanced approximately 5 centimeters into the rectal cavity. Once the obturator is removed, the eyepiece is attached to the scope, allowing for visualization. The scope is further advanced to the location of the foreign body. In cases where the foreign body has smooth edges, a balloon catheter may be utilized to facilitate its removal. The catheter is maneuvered past the foreign body, and upon inflation of the balloon, it creates a grip on the object, allowing for its withdrawal from the rectum. For foreign bodies that are impacted, forceps are introduced through the endoscope to grasp and extract the object. After the foreign body is successfully removed, the endoscope is reinserted to conduct a thorough examination of the rectum, checking for any signs of perforation or other injuries that may have occurred during the process. This procedure is critical for addressing obstructions and ensuring the integrity of the rectal and colonic tissues.