All ICD10 Codes
Chapter 11

K00–K95: Diseases of the Digestive System

Diseases of the Digestive System diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
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  • K82.4—

    Cholesterolosis of gallbladder

  • K82.8—

    Other specified diseases of gallbladder

  • K82.9—

    Disease of gallbladder, unspecified

  • K82.A1—

    Gangrene of gallbladder in cholecystitis

  • K82.A2—

    Perforation of gallbladder in cholecystitis

  • K83.01—

    Primary sclerosing cholangitis

  • K83.09—

    Other cholangitis

  • K83.1—

    Obstruction of bile duct

  • K83.2—

    Perforation of bile duct

  • K83.3—

    Fistula of bile duct

  • K83.4—

    Spasm of sphincter of Oddi

  • K83.5—

    Biliary cyst

  • K83.8—

    Other specified diseases of biliary tract

  • K83.9—

    Disease of biliary tract, unspecified

  • K85.00—

    Idiopathic acute pancreatitis without necrosis or infection

  • K85.01—

    Idiopathic acute pancreatitis with uninfected necrosis

  • K85.02—

    Idiopathic acute pancreatitis with infected necrosis

  • K85.10—

    Biliary acute pancreatitis without necrosis or infection

  • K85.11—

    Biliary acute pancreatitis with uninfected necrosis

  • K85.12—

    Biliary acute pancreatitis with infected necrosis

  • K85.20—

    Alcohol induced acute pancreatitis without necrosis or infection

  • K85.21—

    Alcohol induced acute pancreatitis with uninfected necrosis

  • K85.22—

    Alcohol induced acute pancreatitis with infected necrosis

  • K85.30—

    Drug induced acute pancreatitis without necrosis or infection

  • K85.31—

    Drug induced acute pancreatitis with uninfected necrosis

  • K85.32—

    Drug induced acute pancreatitis with infected necrosis

  • K85.80—

    Other acute pancreatitis without necrosis or infection

  • K85.81—

    Other acute pancreatitis with uninfected necrosis

  • K85.82—

    Other acute pancreatitis with infected necrosis

  • K85.90—

    Acute pancreatitis without necrosis or infection, unspecified

  • K85.91—

    Acute pancreatitis with uninfected necrosis, unspecified

  • K85.92—

    Acute pancreatitis with infected necrosis, unspecified

  • K86.0—

    Alcohol-induced chronic pancreatitis

  • K86.1—

    Other chronic pancreatitis

  • K86.2—

    Cyst of pancreas

  • K86.3—

    Pseudocyst of pancreas

  • K86.81—

    Exocrine pancreatic insufficiency

  • K86.89—

    Other specified diseases of pancreas

  • K86.9—

    Disease of pancreas, unspecified

  • K87—

    Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere

  • K90.0—

    Celiac disease

  • K90.1—

    Tropical sprue

  • K90.2—

    Blind loop syndrome, not elsewhere classified

  • K90.3—

    Pancreatic steatorrhea

  • K90.41—

    Non-celiac gluten sensitivity

  • K90.49—

    Malabsorption due to intolerance, not elsewhere classified

  • K90.81—

    Whipple's disease

  • K90.821—

    Short bowel syndrome with colon in continuity

  • K90.822—

    Short bowel syndrome without colon in continuity

  • K90.829—

    Short bowel syndrome, unspecified

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