• 1 - A condition where surgery has been performed (Surgical code)
  • 1 - Respiratory
    • 5 - Pleura or mediastinum
      • 56 - Trauma (or traumatic fistula)
        • 1 - Traumatic haemothorax or haemopneumothorax
        • 2 - Traumatic pneumothorax
        • 3 - Traumatic broncho-pleural fistula
        • 4 - Chylothorax
• 2 - A condition where no surgery has been performed (non-surgical code)