• 1 - A condition where surgery has been performed (Surgical code)
  • 2 - A condition where no surgery has been performed (non-surgical code)
    • 3 - Gastrointestinal
      • 6 - Large bowel, rectum or anus
        • 15 - Haemorrhage
          • 1 - Colonic or rectal haemorrhage
          • 2 - Colo-vascular fistula
          • 3 - Haemorrhage from large bowel, rectal or anal vascular abnormality
          • 4 - Gastrointestinal haemorrhage, source not identified