Chapter I
Certain infectious and parasitic diseases
(A00-B99)

Rules Conventions GCS DChS.I.1

Intestinal infectious diseases
(A00-A09)

A00 Cholera

A00.0 Cholera due to Vibrio cholerae 01, biovar cholerae
Incl.:
Classical cholera
A00.1 Cholera due to Vibrio cholerae 01, biovar eltor
Incl.:
Cholera eltor
A00.9 Cholera, unspecified

A01 Typhoid and paratyphoid fevers

A01.0 Typhoid fever
Incl.:
Infection due to Salmonella typhi
A01.1 Paratyphoid fever A
A01.2 Paratyphoid fever B
A01.3 Paratyphoid fever C
A01.4 Paratyphoid fever, unspecified
Incl.:
Infection due to Salmonella paratyphi NOS

A02 Other salmonella infections

Incl.:
infection or foodborne intoxication due to any Salmonella species other than S. typhi and S. paratyphi
A02.0 Salmonella enteritis
Incl.:
Salmonellosis
A02.1 Salmonella sepsis
A02.2 Localized salmonella infections
Incl.:
Salmonella:
A02.8 Other specified salmonella infections
A02.9 Salmonella infection, unspecified

A03 Shigellosis

A03.0 Shigellosis due to Shigella dysenteriae
Incl.:
Group A shigellosis [Shiga-Kruse dysentery]
A03.1 Shigellosis due to Shigella flexneri
Incl.:
Group B shigellosis
A03.2 Shigellosis due to Shigella boydii
Incl.:
Group C shigellosis
A03.3 Shigellosis due to Shigella sonnei
Incl.:
Group D shigellosis
A03.8 Other shigellosis
A03.9 Shigellosis, unspecified
Incl.:
Bacillary dysentery NOS

A04 Other bacterial intestinal infections

Excl.:
foodborne intoxications elsewhere classified
tuberculous enteritis ( A18.3)
A04.0 Enteropathogenic Escherichia coli infection
A04.1 Enterotoxigenic Escherichia coli infection
A04.2 Enteroinvasive Escherichia coli infection
A04.3 Enterohaemorrhagic Escherichia coli infection
A04.4 Other intestinal Escherichia coli infections
Incl.:
Escherichia coli enteritis NOS
A04.5 Campylobacter enteritis
A04.6 Enteritis due to Yersinia enterocolitica
Excl.:
extraintestinal yersiniosis ( A28.2)
A04.7 Enterocolitis due to Clostridium difficile
Incl.:
Foodborne intoxication by Clostridium difficile
Pseudomembranous colitis
A04.8 Other specified bacterial intestinal infections
DCS.I.1
A04.9 Bacterial intestinal infection, unspecified
Incl.:
Bacterial enteritis NOS

A05 Other bacterial foodborne intoxications, not elsewhere classified

Excl.:
Clostridium difficile foodborne intoxication and infection ( A04.7)
Escherichia coli infection ( A04.0-A04.4)
listeriosis ( A32.-)
salmonella foodborne intoxication and infection ( A02.-)
toxic effect of noxious foodstuffs ( T61-T62)
A05.0 Foodborne staphylococcal intoxication
A05.1 Botulism
Incl.:
Classical foodborne intoxication due to Clostridium botulinum
A05.2 Foodborne Clostridium perfringens [Clostridium welchii] intoxication
Incl.:
Enteritis necroticans
Pig-bel
A05.3 Foodborne Vibrio parahaemolyticus intoxication
A05.4 Foodborne Bacillus cereus intoxication
A05.8 Other specified bacterial foodborne intoxications
A05.9 Bacterial foodborne intoxication, unspecified

A06 Amoebiasis

Incl.:
infection due to Entamoeba histolytica
Excl.:
other protozoal intestinal diseases ( A07.-)
A06.0 Acute amoebic dysentery
Incl.:
Acute amoebiasis
Intestinal amoebiasis NOS
A06.1 Chronic intestinal amoebiasis
A06.2 Amoebic nondysenteric colitis
A06.3 Amoeboma of intestine
Incl.:
Amoeboma NOS
A06.4† Amoebic liver abscess (K77.0*)
Incl.:
Hepatic amoebiasis
A06.5† Amoebic lung abscess (J99.8*)
Incl.:
Amoebic abscess of lung (and liver)
A06.6† Amoebic brain abscess (G07*)
Incl.:
Amoebic abscess of brain (and liver)(and lung)
A06.7 Cutaneous amoebiasis
A06.8 Amoebic infection of other sites
Incl.:
Amoebic:
  • appendicitis
  • balanitis† (N51.2*)
A06.9 Amoebiasis, unspecified

A07 Other protozoal intestinal diseases

A07.0 Balantidiasis
Incl.:
Balantidial dysentery
A07.1 Giardiasis [lambliasis]
A07.2 Cryptosporidiosis
A07.3 Isosporiasis
Incl.:
Infection due to Isospora belli and Isospora hominis
Intestinal coccidiosis
Isosporosis
A07.8 Other specified protozoal intestinal diseases
Incl.:
Intestinal trichomoniasis
Sarcocystosis
Sarcosporidiosis
A07.9 Protozoal intestinal disease, unspecified
Incl.:
Flagellate diarrhoea
Protozoal:
  • colitis
  • diarrhoea
  • dysentery

A08 Viral and other specified intestinal infections

Excl.:
influenza with involvement of gastrointestinal tract ( J09, J10.8, J11.8)
A08.0 Rotaviral enteritis
A08.1 Acute gastroenteropathy due to Norwalk agent
Incl.:
Small round structured virus enteritis
A08.2 Adenoviral enteritis
A08.3 Other viral enteritis
A08.4 Viral intestinal infection, unspecified
Incl.:
Viral:
  • enteritis NOS
  • gastroenteritis NOS
  • gastroenteropathy NOS
A08.5 Other specified intestinal infections

A09 Other gastroenteritis and colitis of infectious and unspecified origin

Excl.:
due to bacterial, protozoal, viral and other specified infectious agents ( A00-A08)
noninfective (see noninfectious) diarrhoea ( K52.9)
noninfective (see noninfectious) diarrhoea
A09.0 Other and unspecified gastroenteritis and colitis of infectious origin
Incl.:
Catarrh, enteric or intestinal
Diarrhoea:
  • acute bloody
  • acute haemorrhagic
  • acute watery
  • dysenteric
  • epidemic
  • Infectious or septic
    • colitis
    • enteritis
    • gastroenteritis
  • NOS
  • haemorrhagic
Infectious diarrhoea NOS
A09.9 Gastroenteritis and colitis of unspecified origin
Incl.:
Neonatal diarrhoea NOS