• 1 - A condition where surgery has been performed (Surgical code)
  • 3 - Gastrointestinal
    • 4 - Duodenum
      • 8 - Congenital or acquired deformity or abnormality
        • 1 - Meconium ileus
        • 2 - Duodenal atresia
• 2 - A condition where no surgery has been performed (non-surgical code)