• 1 - A condition where surgery has been performed (Surgical code)
  • 4 - Neurological (including eyes)
    • 1 - Head, neck (extracranial) or eyes
      • 15 - Haemorrhage
        • 2 - Epistaxis
        • 3 - Haemorrhage into upper airway
        • 4 - Extrinsic compression of airway by haematoma
• 2 - A condition where no surgery has been performed (non-surgical code)