ICD-10-CM — Chapter 11

Diseases of the digestive system - Use for diseases of the mouth, esophagus, stomach, including intestines, liver, gallbladder, pancreas and other diseases and disorders of the digestive system.

Tabular List

Find your ICD-10-CM code by first selecting the most applicable chapter

Diseases of the digestive system

- Use for diseases of the mouth, esophagus, stomach, including intestines, liver, gallbladder, pancreas and other diseases and disorders of the digestive system.


  • 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)
Expand All Chapter #11 contains the following ICD-10-CM sections:
  • K00 Disorders of tooth development and eruption

  • K01 Embedded and impacted teeth

  • K02 Dental caries

  • K03 Other diseases of hard tissues of teeth

  • K04 Diseases of pulp and periapical tissues

  • K05 Gingivitis and periodontal diseases

  • K06 Other disorders of gingiva and edentulous alveolar ridge

  • K08 Other disorders of teeth and supporting structures

  • K09 Cysts of oral region, not elsewhere classified

  • K11 Diseases of salivary glands

  • K12 Stomatitis and related lesions

  • K13 Other diseases of lip and oral mucosa

  • K14 Diseases of tongue


  • hiatus hernia (K44.-)
  • K20 Esophagitis

  • K21 Gastro-esophageal reflux disease

  • K22 Other diseases of esophagus

  • K23 Disorders of esophagus in diseases classified elsewhere

  • K25 Gastric ulcer

  • K26 Duodenal ulcer

  • K27 Peptic ulcer, site unspecified

  • K28 Gastrojejunal ulcer

  • K29 Gastritis and duodenitis

  • K30 Functional dyspepsia

    Inclusion term(s):

    • Indigestion
  • K31 Other diseases of stomach and duodenum

  • K35 Acute appendicitis

  • K36 Other appendicitis

    Inclusion term(s):

    • Chronic appendicitis
    • Recurrent appendicitis
  • K37 Unspecified appendicitis

  • K38 Other diseases of appendix

Hernia with both gangrene and obstruction is classified to hernia with gangrene.


  • acquired hernia
  • congenital [except diaphragmatic or hiatus] hernia
  • recurrent hernia
  • K40 Inguinal hernia

  • K41 Femoral hernia

  • K42 Umbilical hernia

  • K43 Ventral hernia

  • K44 Diaphragmatic hernia

  • K45 Other abdominal hernia

  • K46 Unspecified abdominal hernia


  • noninfective inflammatory bowel disease


  • irritable bowel syndrome (K58.-)
  • megacolon (K59.3-)
  • K50 Crohn's disease [regional enteritis]

  • K51 Ulcerative colitis

  • K52 Other and unspecified noninfective gastroenteritis and colitis

  • K55 Vascular disorders of intestine

  • K56 Paralytic ileus and intestinal obstruction without hernia

  • K57 Diverticular disease of intestine

  • K58 Irritable bowel syndrome

  • K59 Other functional intestinal disorders

  • K60 Fissure and fistula of anal and rectal regions

  • K61 Abscess of anal and rectal regions

  • K62 Other diseases of anus and rectum

  • K63 Other diseases of intestine

  • K64 Hemorrhoids and perianal venous thrombosis

  • K65 Peritonitis

  • K66 Other disorders of peritoneum

  • K67 Disorders of peritoneum in infectious diseases classified elsewhere

  • K68 Disorders of retroperitoneum


  • jaundice NOS (R17)


  • K70 Alcoholic liver disease

  • K71 Toxic liver disease

  • K72 Hepatic failure, not elsewhere classified

  • K73 Chronic hepatitis, not elsewhere classified

  • K74 Fibrosis and cirrhosis of liver

  • K75 Other inflammatory liver diseases

  • K76 Other diseases of liver

  • K77 Liver disorders in diseases classified elsewhere

  • K80 Cholelithiasis

  • K81 Cholecystitis

  • K82 Other diseases of gallbladder

  • K83 Other diseases of biliary tract

  • K85 Acute pancreatitis

  • K86 Other diseases of pancreas

  • K87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere

  • K90 Intestinal malabsorption

  • K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

  • K92 Other diseases of digestive system

  • K94 Complications of artificial openings of the digestive system

  • K95 Complications of bariatric procedures