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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  • K80.66—

    Calculus of gallbladder and bile duct with acute and chronic cholecystitis without obstruction

  • K80.67—

    Calculus of gallbladder and bile duct with acute and chronic cholecystitis with obstruction

  • K80.7—

    Calculus of gallbladder and bile duct without cholecystitis

  • K80.70—

    Calculus of gallbladder and bile duct without cholecystitis without obstruction

  • K80.71—

    Calculus of gallbladder and bile duct without cholecystitis with obstruction

  • K80.8—

    Other cholelithiasis

  • K80.80—

    Other cholelithiasis without obstruction

  • K80.81—

    Other cholelithiasis with obstruction

  • K81—

    Cholecystitis

  • K81.0—

    Acute cholecystitis

  • K81.1—

    Chronic cholecystitis

  • K81.2—

    Acute cholecystitis with chronic cholecystitis

  • K81.9—

    Cholecystitis, unspecified

  • K82—

    Other diseases of gallbladder

  • K82.0—

    Obstruction of gallbladder

  • K82.1—

    Hydrops of gallbladder

  • K82.2—

    Perforation of gallbladder

  • K82.3—

    Fistula of gallbladder

  • K82.4—

    Cholesterolosis of gallbladder

  • K82.8—

    Other specified diseases of gallbladder

  • K82.9—

    Disease of gallbladder, unspecified

  • K82.A—

    Disorders of gallbladder in diseases classified elsewhere

  • K82.A1—

    Gangrene of gallbladder in cholecystitis

  • K82.A2—

    Perforation of gallbladder in cholecystitis

  • K83—

    Other diseases of biliary tract

  • K83.0—

    Cholangitis

  • 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—

    Acute pancreatitis

  • K85.0—

    Idiopathic acute pancreatitis

  • 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

  • K85.1—

    Biliary acute pancreatitis

  • 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

  • K85.2—

    Alcohol induced acute pancreatitis

  • 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

  • K85.3—

    Drug induced acute pancreatitis

  • K85.30—

    Drug induced acute pancreatitis without necrosis or infection

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