Answer: The correct code for a diagnostic flexible bronchoscopy via a tracheostomy is 31615 (Tracheobronchoscopy through established tracheostomy incision). This code covers elements of both the surgical work (removal of obstructing crusts) and diagnostic bronchoscopy when the same physician performs the procedures.
Keep in mind: You should not report diagnostic and surgical codes for one procedure. CPT® code 31615 describes a diagnostic tracheobronchoscopy through an established tracheostomy site or incision. Once the procedure involves interventions, a standard bronchoscopy code should be used. Report 31625 for an endobronchial biopsy.
You can submit code 31623 (Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with brushing or protected brushings) if the physician has documented protected brushings. All brushings (single or multiple lobes) are included in this code, so only report it once.
Code 31624 (Bronchoscopy, rigid or flexible, including fluoroscopic guidance, when performed; with bronchial alveolar lavage) is warranted only in cases where BAL (bronchial alveolar lavage) has been carried out during bronchoscopy and well documented; otherwise it is treated as a washing (which are not separately reported).