ICD-10 Chapter XI: Diseases of the digestive system
This is a shortened version of the eleventh chapter of the ICD-10: Diseases of the digestive system. It covers ICD codes K00.0 to K93. All versions of the ICD-10, including the most recent one (2019), can be browsed freely on the website of the World Health Organisation (WHO). The ICD-10 can also be downloaded in PDF-form.
Chapter | Block | Title |
---|---|---|
I | A00–B99 | Certain infectious and parasitic diseases |
II | C00–D48 | Neoplasms |
III | D50–D89 | Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism |
IV | E00–E90 | Endocrine, nutritional and metabolic diseases |
V | F00–F99 | Mental and behavioural disorders |
VI | G00–G99 | Diseases of the nervous system |
VII | H00–H59 | Diseases of the eye and adnexa |
VIII | H60–H95 | Diseases of the ear and mastoid process |
IX | I00–I99 | Diseases of the circulatory system |
X | J00–J99 | Diseases of the respiratory system |
XI | K00–K93 | Diseases of the digestive system |
XII | L00–L99 | Diseases of the skin and subcutaneous tissue |
XIII | M00–M99 | Diseases of the musculoskeletal system and connective tissue |
XIV | N00–N99 | Diseases of the genitourinary system |
XV | O00–O99 | Pregnancy, childbirth and the puerperium |
XVI | P00–P96 | Certain conditions originating in the perinatal period |
XVII | Q00–Q99 | Congenital malformations, deformations and chromosomal abnormalities |
XVIII | R00–R99 | Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified |
XIX | S00–T98 | Injury, poisoning and certain other consequences of external causes |
XX | V01–Y98 | External causes of morbidity and mortality |
XXI | Z00–Z99 | Factors influencing health status and contact with health services |
XXII | U00–U99 | Codes for special purposes |
Examples of conditions captured using codes from Chapter XI include gastrointestinal stromal tumor, pancreatitis, and alcoholic liver disease.
Diseases of oral cavity, salivary glands and jaws (K00–K14)
- K00 Disorders of tooth development and eruption
- K00.0 Anodontia
- Hypodontia
- Oligodontia
- K00.1 Supernumerary teeth
- K00.2 Abnormalities of size and form of teeth
- K00.3 Mottled teeth
- Dental fluorosis
- Mottling of enamel
- Nonfluoride enamel opacities
- K00.4 Disturbances in tooth formation
- Dilaceration of tooth
- Enamel hypoplasia
- Regional odontodysplasia
- Turner's tooth
- K00.5 Hereditary disturbances in tooth structure, not elsewhere classified
- Amelogenesis imperfecta
- Dentinogenesis imperfecta
- Odontogenesis imperfecta
- Dentinal dysplasia
- Shell teeth
- K00.6 Disturbances in tooth eruption
- K00.7 Teething syndrome
- K00.8 Other disorders of tooth development
- K00.9 Disorder of tooth development, unspecified
- K00.0 Anodontia
- K01 Embedded and impacted teeth
- K02 Dental caries
- K03 Other diseases of hard tissues of teeth
- K03.0 Excessive attrition of teeth
- K03.1 Abrasion of teeth
- K03.2 Erosion of teeth
- K03.3 Pathological resorption of teeth
- K03.4 Hypercementosis
- K03.5 Ankylosis of teeth
- K03.6 Deposits (accretions) on teeth
- K03.7 Posteruptive colour changes of dental hard tissues
- K03.8 Other specified diseases of hard tissues of teeth
- K03.9 Disease of hard tissues of teeth, unspecified
- K04 Diseases of pulp and periapical tissues
- K04.0 Pulpitis
- K04.1 Necrosis of pulp
- K04.2 Pulp degeneration
- K04.3 Abnormal hard tissue formation in pulp
- K04.4 Acute apical periodontitis of pulpal origin
- K04.5 Chronic apical periodontitis
- K04.6 Periapical abscess with sinus
- K04.7 Periapical abscess without sinus
- K04.8 Radicular cyst
- K04.9 Other and unspecified diseases of pulp and periapical tissues
- K05 Gingivitis and periodontal diseases
- K05.0 Acute gingivitis
- K05.1 Chronic gingivitis
- K05.2 Acute periodontitis
- K05.3 Chronic periodontitis
- K05.4 Periodontosis
- K05.5 Other periodontal diseases
- K05.6 Periodontal disease, unspecified
- K06 Other disorders of gingiva and edentulous alveolar ridge
- K06.0 Gingival recession
- K06.1 Gingival enlargement
- K06.2 Gingival and edentulous alveolar ridge lesions associated with trauma
- K06.8 Other specified disorders of gingiva and edentulous alveolar ridge
- Fibrous epulis
- Flabby ridge
- Giant cell epulis
- Peripheral giant cell granuloma
- Pyogenic granuloma of gingiva
- K06.9 Disorder of gingiva and edentulous alveolar ridge, unspecified
- K07 Dentofacial anomalies (including malocclusion)
- K07.0 Major anomalies of jaw size
- mandibular hyperplasia
- maxillary hypoplasia
- mandibular hyperplasia
- maxillary hypoplasia
- Macrognathism (mandibular)(maxillary)
- Micrognathism (mandibular)(maxillary)
- K07.1 Anomalies of jaw-cranial base relationship
- Asymmetry of jaw
- Prognathism (mandibular)(maxillary)
- Retrognathism (mandibular)(maxillary)
- K07.2 Anomalies of dental arch relationship
- K07.3 Anomalies of tooth position
- Crowding of tooth or teeth
- Diastema of tooth or teeth
- Displacement of tooth or teeth
- Rotation of tooth or teeth
- Abnormal spacing of tooth or teeth
- Transposition of tooth or teeth
- Impacted or embedded teeth with abnormal position of such teeth or adjacent teeth
- K07.4 Malocclusion, unspecified
- K07.5 Dentofacial functional abnormalities
- Abnormal jaw closure
- Malocclusion due to abnormal swallowing
- Malocclusion due tomouth breathing
- Malocclusion due tongue, lip or finger habits
- K07.6 Temporomandibular joint disorders
- Costen's complex or syndrome
- Derangement of temporomandibular joint
- Snapping jaw
- Temporomandibular joint-pain-dysfunction syndrome
- K07.8 Other dentofacial anomalies
- K07.9 Dentofacial anomaly, unspecified
- K07.0 Major anomalies of jaw size
- K08 Other disorders of teeth and supporting structures
- K08.0 Exfoliation of teeth due to systemic causes
- K08.1 Loss of teeth due to accident, extraction or local periodontal disease
- K08.2 Atrophy of edentulous alveolar ridge
- K08.3 Retained dental root
- K08.8 Other specified disorders of teeth and supporting structures
- Enlargement of alveolar ridge NOS
- Irregular alveolar process
- Toothache NOS
- K08.9 Disorder of teeth and supporting structures, unspecified
- K09 Cysts of oral region, not elsewhere classified
- K10 Other diseases of jaws
- K11 Diseases of salivary glands
- K11.0 Atrophy of salivary gland
- K11.1 Hypertrophy of salivary gland
- K11.2 Sialadenitis
- K11.3 Abscess of salivary gland
- K11.4 Fistula of salivary gland
- K11.5 Sialolithiasis
- K11.6 Mucocele of salivary gland
- K11.7 Disturbances of salivary secretion
- Hypoptyalism
- Ptyalism
- Xerostomia
- K11.8 Other diseases of salivary glands
- Benign lymphoepithelial lesion of salivary gland
- Mikulicz' disease
- Necrotizing sialometaplasia
- Sialectasia
- K11.9 Disease of salivary gland, unspecified
- K12 Stomatitis and related lesions
- K12.0 Recurrent oral aphthae
- K12.1 Other forms of stomatitis
- K12.2 Cellulitis and abscess of mouth
- K13 Other diseases of lip and oral mucosa
- K13.0 Diseases of lips
- K13.1 Cheek and lip biting
- K13.2 Leukoplakia and other disturbances of oral epithelium, including tongue
- K13.3 Hairy leukoplakia
- K13.4 Granuloma and granuloma-like lesions of oral mucosa
- K13.5 Oral submucous fibrosis
- K13.6 Irritative hyperplasia of oral mucosa
- K13.7 Other and unspecified lesions of oral mucosa
- K14 Diseases of tongue
- K14.0 Glossitis
- K14.1 Geographic tongue
- K14.2 Median rhomboid glossitis
- K14.3 Hypertrophy of tongue papillae
- K14.4 Atrophy of tongue papillae
- K14.5 Plicated tongue
- K14.6 Glossodynia
- K14.8 Other diseases of tongue
- K14.9 Disease of tongue, unspecified
Diseases of oesophagus, stomach and duodenum (K20–K31)
- K20 esophagitis
- K21 Gastro-oesophageal reflux disease
- K22 Other diseases of oesophagus
- K22.0 Achalasia of cardia
- K22.1 Ulcer of oesophagus
- K22.2 Oesophageal obstruction
- K22.3 Perforation of oesophagus
- K22.4 Dyskinesia of oesophagus
- K22.5 Diverticulum of oesophagus, acquired
- K22.6 Gastro-oesophageal laceration-haemorrhage syndrome
- K22.7 Barrett's oesophagus
- K22.8 Other specified diseases of oesophagus
- K22.9 Disease of oesophagus, unspecified
- K23 Disorders of oesophagus in diseases classified elsewhere
- K25 Gastric ulcer
- K26 Duodenal ulcer
- K27 Peptic ulcer, site unspecified
- K28 Gastrojejunal ulcer
- K29 Gastritis and duodenitis
- K29.0 Acute haemorrhagic gastritis
- K29.1 Other acute gastritis
- K29.2 Alcoholic gastritis
- K29.3 Chronic superficial gastritis
- K29.4 Chronic atrophic gastritis
- K29.5 Chronic gastritis, unspecified
- K29.6 Other gastritis
- Giant hypertrophic gastritis
- Granulomatous gastritis
- Ménétrier's disease
- K29.7 Gastritis, unspecified
- K29.8 Duodenitis
- K29.9 Gastroduodenitis, unspecified
- K30 Dyspepsia
- K31 Other diseases of stomach and duodenum
- K31.0 Acute dilatation of stomach
- K31.1 Adult hypertrophic pyloric stenosis
- K31.2 Hourglass stricture and stenosis of stomach
- K31.3 Pylorospasm, not elsewhere classified
- K31.4 Gastric diverticulum
- K31.5 Obstruction of duodenum
- K31.6 Fistula of stomach and duodenum
- K31.7 polyp of stomach and duodenum
- K31.8 Other specified diseases of stomach and duodenum
- Achlorhydria
- Gastroptosis
- Hourglass contraction of stomach
- K31.9 Disease of stomach and duodenum, unspecified
Diseases of appendix (K35–K38)
- K35 Acute appendicitis
- K35.0 Acute appendicitis with generalized peritonitis
- K35.1 Acute appendicitis with peritoneal abscess
- K35.9 Acute appendicitis, unspecified
- K36 Other appendicitis
- K37 Unspecified appendicitis
- K38 Other diseases of appendix
- K38.0 Hyperplasia of appendix
- K38.1 Appendicular concretions
- K38.2 Diverticulum of appendix
- K38.3 Fistula of appendix
- K38.8 Other specified diseases of appendix
- Intussusception of appendix
- K38.9 Disease of appendix, unspecified
Noninfective enteritis and colitis (K50–K52)
- K50 Crohn's disease (regional enteritis)
- K50.0 Crohn's disease of small intestine
- K50.1 Crohn's disease of large intestine
- K50.8 Other Crohn's disease
- K50.9 Crohn's disease, unspecified
- K51 Ulcerative colitis
- K51.0 Ulcerative (chronic) enterocolitis
- K51.1 Ulcerative (chronic) ileocolitis
- K51.2 Ulcerative (chronic) proctitis
- K51.3 Ulcerative (chronic) rectosigmoiditis
- K51.4 Pseudopolyposis of colon
- K51.5 Mucosal proctocolitis
- K51.8 Other ulcerative colitis
- K51.9 Ulcerative colitis, unspecified
- Ulcerative enteritis NOS
- K52 Other noninfective gastroenteritis and colitis
- K52.0 Gastroenteritis and colitis due to radiation
- K52.1 Toxic gastroenteritis and colitis
- K52.2 Allergic and dietetic gastroenteritis and colitis
- K52.8 Other specified noninfective gastroenteritis and colitis
- K52.9 Noninfective gastroenteritis and colitis, unspecified
Other diseases of intestines (K55–K63)
- K55 Vascular disorders of intestine
- K56 Paralytic ileus and intestinal obstruction without hernia
- K56.0 Paralytic ileus
- K56.1 Intussusception
- K56.2 Volvulus
- K56.3 Gallstone ileus
- K56.4 Other impaction of intestine
- K56.5 Intestinal adhesions (bands) with obstruction
- K56.6 Other and unspecified intestinal obstruction
- K56.7 Ileus, unspecified
- K57 Diverticular disease of intestine
- K57.0 Diverticular disease of small intestine with perforation and abscess
- K57.1 Diverticular disease of small intestine without perforation or abscess
- K57.2 Diverticular disease of large intestine with perforation and abscess
- K57.3 Diverticular disease of large intestine without perforation or abscess
- K57.4 Diverticular disease of both small and large intestine with perforation and abscess
- K57.5 Diverticular disease of both small and large intestine without perforation or abscess
- K57.8 Diverticular disease of intestine, part unspecified, with perforation and abscess
- K57.9 Diverticular disease of intestine, part unspecified, without perforation or abscess
- K58 Irritable bowel syndrome
- K59 Other functional intestinal disorders
- K60 Fissure and fistula of anal and rectal regions
- K60.0 Acute anal fissure
- K60.1 Chronic anal fissure
- K60.2 Anal fissure, unspecified
- K60.3 Anal fistula
- K60.4 Rectal fistula
- K60.5 Anorectal fistula
- K61 Abscess of anal and rectal regions
- K61.0 Anal abscess
- K62 Other diseases of anus and rectum
- K62.0 Anal polyp
- K62.1 Rectal polyp
- K62.2 Anal prolapse
- K62.3 Rectal prolapse
- K62.4 Stenosis of anus and rectum
- K62.5 Haemorrhage of anus and rectum
- K62.6 Ulcer of anus and rectum
- K62.7 Radiation proctitis
- K62.8 Other specified diseases of anus and rectum
- Proctitis NOS
- K62.9 Disease of anus and rectum, unspecified
- K63 Other diseases of intestine
Diseases of peritoneum (K65–K67)
- K65 Peritonitis
- K66 Other disorders of peritoneum
- K66.0 Peritoneal adhesions
- K66.1 Haemoperitoneum
- K66.8 Other specified disorders of peritoneum
- K66.9 Disorder of peritoneum, unspecified
- K67 Disorders of peritoneum in infectious diseases classified elsewhere
Diseases of liver (K70–K77)
- K70 Alcoholic liver disease
- K70.0 Alcoholic fatty liver
- K70.1 Alcoholic hepatitis
- K70.2 Alcoholic fibrosis and sclerosis of liver
- K70.3 Alcoholic cirrhosis of liver
- K70.4 Alcoholic hepatic failure
- K70.9 Alcoholic liver disease, unspecified
- K71 Toxic liver disease
- K71.0 Toxic liver disease with cholestasis
- K71.1 Toxic liver disease with hepatic necrosis
- K71.2 Toxic liver disease with acute hepatitis
- K71.3 Toxic liver disease with chronic persistent hepatitis
- K71.4 Toxic liver disease with chronic lobular hepatitis
- K71.5 Toxic liver disease with chronic active hepatitis
- K71.6 Toxic liver disease with hepatitis, not elsewhere classified
- K71.7 Toxic liver disease with fibrosis and cirrhosis of liver
- K71.8 Toxic liver disease with other disorders of liver
- K71.9 Toxic liver disease, unspecified
- 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
- K76.0 Fatty (change of) liver, not elsewhere classified
- K76.1 Chronic passive congestion of liver
- K76.2 Central haemorrhagic necrosis of liver
- K76.3 Infarction of liver
- K76.4 Peliosis hepatis
- K76.5 Hepatic veno-occlusive disease
- K76.6 Portal hypertension
- K76.7 Hepatorenal syndrome
- K76.8 Other specified diseases of liver
- K76.9 Liver disease, unspecified
- K77 Liver disorders in diseases classified elsewhere
Disorders of gallbladder, biliary tract and pancreas (K80–K87)
- K80 Cholelithiasis
- K80.0 Calculus of gallbladder with acute cholecystitis
- K80.1 Calculus of gallbladder with other cholecystitis
- K80.2 Calculus of gallbladder without cholecystitis
- K80.3 Calculus of bile duct with cholangitis
- K80.4 Calculus of bile duct with cholecystitis
- K80.5 Calculus of bile duct without cholangitis or cholecystitis
- K80.8 Other cholelithiasis
- K81 Cholecystitis
- K82 Other diseases of gallbladder
- K83 Other diseases of biliary tract
- K83.0 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
- Abscess of pancreas
- K86 Other diseases of pancreas
- K86.0 Alcohol-induced chronic pancreatitis
- K86.1 Other chronic pancreatitis
- K86.2 Cyst of pancreas
- K86.3 Pseudocyst of pancreas
- K86.8 Other specified diseases of pancreas
- K86.9 Disease of pancreas, unspecified
- K87 Disorders of gallbladder, biliary tract and pancreas in diseases classified elsewhere
Other diseases of the digestive system (K90–K93)
- K90 Intestinal malabsorption
- K90.0 Coeliac disease
- K90.1 Tropical sprue
- K90.2 Blind loop syndrome, not elsewhere classified
- K90.3 Pancreatic steatorrhoea
- K90.4 Malabsorption due to intolerance, not elsewhere classified
- K90.8 Other intestinal malabsorption
- K90.9 Intestinal malabsorption, unspecified
- K91 Postprocedural disorders of digestive system, not elsewhere classified
- K91.0 Vomiting following gastrointestinal surgery
- K91.1 Postgastric surgery syndromes
- dumping syndrome
- postgastrectomy syndrome
- postvagotomy syndrome
- K91.2 Postsurgical malabsorption, not elsewhere classified
- K91.3 Postoperative intestinal obstruction
- K91.4 Colostomy and enterostomy malfunction
- K91.5 Postcholecystectomy syndrome
- K91.8 Other postprocedural disorders of digestive system, not elsewhere classified
- K91.9 Postprocedural disorder of digestive system, unspecified
- K92 Other diseases of digestive system
- K93 Disorders of other digestive organs in diseases classified elsewhere
Exclusions
- 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, NEC (R00-R94)
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