• 1 - A condition where surgery has been performed (Surgical code)
  • 3 - Gastrointestinal
    • 5 - Small bowel
      • 30 - Obstruction
        • 1 - Small bowel herniation
        • 2 - Small bowel volvulus
        • 3 - Small bowel adhesions
        • 4 - Small bowel intussusception
        • 5 - Small bowel tumour
        • 6 - Small bowel inflammatory masses
        • 7 - Functional obstruction or pseudo-obstruction
        • 8 - Gall stone ileus
• 2 - A condition where no surgery has been performed (non-surgical code)