Chapter I

Certain infectious and parasitic diseases

Intestinal infectious diseases

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

A01 Typhoid and paratyphoid fevers
A01.0 Typhoid fever
# Enteric fever
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
Infection due to Salmonella paratyphi NOS

A02 Other salmonella infections
Includes: infection or foodborne intoxication due to any Salmonella species other than S. typhi and S. paratyphi
A02.0 Salmonella enteritis
A02.1 Salmonella septicaemia
A02.2 Localized salmonella infections
· arthritis+ ( M01.3* )
· meningitis+ ( G01* )
· osteomyelitis+ ( M90.2* )
· pneumonia+ ( J17.0* )
· renal tubulo-interstitial disease+ ( N16.0* )
A02.8 Other specified salmonella infections
A02.9 Salmonella infection, unspecified

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

A04 Other bacterial intestinal infections
Excludes: 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
Escherichia coli enteritis NOS
A04.5 Campylobacter enteritis
A04.6 Enteritis due to Yersinia enterocolitica
Excludes: extraintestinal yersiniosis ( A28.2 )
A04.7 Enterocolitis due to Clostridium difficile
# Antibiotic associated colitis
Foodborne intoxication by Clostridium difficile
Pseudomembranous colitis
A04.8 Other specified bacterial intestinal infections
A04.9 Bacterial intestinal infection, unspecified
Bacterial enteritis NOS

A05 Other bacterial foodborne intoxications, not elsewhere classified
Excludes: 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
Classical foodborne intoxication due to Clostridium botulinum
A05.2 Foodborne Clostridium perfringens [Clostridium welchii] intoxication
Enteritis necroticans
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
Includes: infection due to Entamoeba histolytica
Excludes: other protozoal intestinal diseases ( A07.- )
A06.0 Acute amoebic dysentery
Acute amoebiasis
Intestinal amoebiasis NOS
A06.1 Chronic intestinal amoebiasis
A06.2 Amoebic nondysenteric colitis
A06.3 Amoeboma of intestine
Amoeboma NOS
A06.4 Amoebic liver abscess
Hepatic amoebiasis
A06.5+ Amoebic lung abscess ( J99.8* )
Amoebic abscess of lung (and liver)
A06.6+ Amoebic brain abscess ( G07* )
Amoebic abscess of brain (and liver)(and lung)
A06.7 Cutaneous amoebiasis
A06.8 Amoebic infection of other sites
· appendicitis
· balanitis+ ( N51.2* )
A06.9 Amoebiasis, unspecified

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

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

A09 Diarrhoea and gastroenteritis of presumed infectious origin
Note: In countries where any term listed in A09 without further specification can be assumed to be of noninfectious origin, the condition should be classified to K52.9.
Catarrh, enteric or intestinal
· dysenteric
· epidemic
Infectious diarrhoeal disease NOS
Excludes: due to bacterial, protozoal, viral and other specified infectious agents ( A00-A08 )
noninfective diarrhoea ( K52.9 )
· neonatal ( P78.3 )