• 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
      • 41 - Vascular
        • 1 - Large bowel artery stenosis or occlusion
        • 2 - Large bowel artery embolization
        • 3 - Large bowel infarction due to primary vascular disease
        • 4 - Large bowel infarction due to herniation, volvulus or adhesions
        • 5 - Ischaemic colitis