• 1 - A condition where surgery has been performed (Surgical code)
  • 1 - Respiratory
    • 4 - Lungs
      • 6 - Collapse
        • 1 - Lung collapse or atelectasis
        • 2 - Non-traumatic haemothorax
        • 3 - Traumatic haemothorax or haemopneumothorax
        • 4 - Lung collapse due to pneumothorax
        • 5 - Lung collapse secondary to broncho-pleural fistula
• 2 - A condition where no surgery has been performed (non-surgical code)