• 1 - A condition where surgery has been performed (Surgical code)
  • 9 - Haematological/Immunological
    • 1 - Blood
      • 8 - Congenital or acquired deformity or abnormality
        • 1 - Anaemia
        • 2 - Polycythaemia
        • 3 - Porphyria
        • 4 - Sickle cell disease
        • 5 - Spherocytosis or stomatocytosis
        • 6 - Thalassaemia
        • 7 - Haemophilia or von Willebrand's disease
        • 9 - Pro-coagulant states
• 2 - A condition where no surgery has been performed (non-surgical code)