• 1 - A condition where surgery has been performed (Surgical code)
• 2 - A condition where no surgery has been performed (non-surgical code)
  • 1 - Respiratory
    • 1 - Upper airway or trachea
      • 56 - Trauma (or traumatic perforation or fistula)
        • 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