Below is a list summarizing the CPT codes for introduction procedures on the trachea and bronchi.
CPT Code 31717
CPT 31717 describes catheterization with bronchial brush biopsy.
CPT Code 31720
CPT 31720 describes nasotracheal catheter aspiration as a separate procedure.
CPT Code 31725
CPT 31725 describes tracheobronchial catheter aspiration with a fiberscope, performed as a separate procedure at the bedside.
CPT Code 31730
CPT 31730 describes the transtracheal (percutaneous) introduction of a needle wire dilator/stent or indwelling tube for oxygen therapy.