• 1 - A condition where surgery has been performed (Surgical code)
    • 13 - Trauma
      • 1 - Respiratory
        • 1 - Upper airway or trachea
          • 1 - Trauma to mouth, mandible, pharynx or facial bones
          • 2 - Laryngeal trauma or traumatic perforation
          • 3 - Tracheal trauma or traumatic perforation
          • 4 - Traumatic tracheo-oesophageal fistula
  • 2 - A condition where no surgery has been performed (non-surgical code)