Australia's notifiable diseases status, 1999: Annual report of the National Notifiable Diseases Surveillance System

This article published in Communicable Diseases Intelligence Volume 25, No 4, November 2001 contains the 1999 annual report of National Notifiable Diseases Surveillance System. This annual report is available as 32 HTML documents and is also available in PDF format.

Page last updated: 17 December 2001

A print friendly PDF version is available from this Communicable Diseases Intelligence issue's table of contents.

Appendix 1 - Case Definitions

The following table displays the case definitions for gastrointestinal diseases notified to the National Notifiable Diseases Surveillance System in 1999. If you are not able to access these data please e-mail

Appendix 1a. Case definitions and ICD-10 code for notifiable diseases reported to NNDSS in 1999, gastrointestinal diseases

Case definition (NHMRC 1994)
ICD-10 code(s)
Botulism A clinically compatible illness (diplopia, blurred vision, muscle weakness, paralysis or bulbar palsy) with a history of exposure to a probable food source in the absence of a contaminated wound

AND one of the following: isolation of Clostridium botulinum from faeces or other clinical specimens

OR detection of C. botulinum toxin in serum, faeces or probable food source

OR epidemiological linkage to other cases of confirmed foodborne botulism

Campylobacteriosis Isolation of Campylobacter species from a clinical specimen AO4.5
Haemolytic uraemic syndrome (HUS)* Acute microangiopathic anaemia on peripheral blood smear

AND acute renal impairment

AND/OR thrombocytopaenia

Hepatitis A Anti-HAV IgM positive in the absence of recent vaccination

OR demonstration of a clinical case of hepatitis (jaundice and/or elevated aminotransferase levels) without a non-infectious cause

AND epidemiologically linked to a serologically confirmed case

Hepatitis E* A person who demonstrates anti-HEV IgM in sera collected less than 4 weeks after onset of acute hepatitis

OR IgG seroconversion in paired sera

OR HEV identified by nucleic acid test OR HEV identified by EM on stool

OR a hepatitis-like illness in the absence of other causes of hepatitis and detection of antibodies to HEV

Listeriosis Isolation of Listeria monocytogenes from a site which is normally sterile, including foetal gastrointestinal contents A32
Salmonellosis Isolation of Salmonella species (excluding S. typhi) from any clinical specimen AO2
Shigellosis Isolation of Shigella species from any clinical specimen AO3
SLTEC, VTEC* A person with bloody diarrhoea or HUS from whom, in a clinical specimen: Shiga-toxin producing E. coli (SLTEC) are isolated

OR isolation of Shiga-toxin from an E. coli isolate

OR identification of the gene associated with the production of Shiga-toxin in E. coli

A4.1, A4.4
Typhoid Isolation of Salmonella typhi or S. parathphi serotype A, B, or C from any clinical specimen AO1.0
Yersiniosis Isolation of Yersinia enterocolitica or Y. pseudotuberculosis from blood or faeces

OR detection of circulating antigen by ELISA or agglutination test

OR positive Yersinia serology in the presence of clinical compatible illness


All definitions from Surveillance Case Definitions, National Health and Medical Research Council, March 1994, except those marked * which are draft summary definitions from the Communicable Diseases Network Australia (January 2001). Some Australian States and Territories have their own case definitions for some diseases, which may vary from those shown here.

This article was published in Communicable Diseases Intelligence Volume 25, No 4, November 2001.

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