• 1 - A condition where surgery has been performed (Surgical code)
    • 3 - Gastrointestinal
      • 7 - Liver or biliary tree
        • 8 - Congenital or acquired deformity or abnormality
          • 1 - Biliary atresia
          • 2 - Cholelithiasis (gall stones)
          • 3 - Cystic liver disease
  • 2 - A condition where no surgery has been performed (non-surgical code)