Question: New Jersey Subscriber Answer: You should not report two codes for one procedure. CPT 31615 describes a tracheobronchoscopy through an established tracheostomy site or incision. This is not the same as an endotracheal tube (ETT).You should report bronchoscopic services performed through the ETT in the standard manner, which is 31622 (Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; diagnostic, with cell washing, when performed [separate procedure]) in this case. Quick fact: