National case definition: Haemophilus influenzae non-b, invasive disease

Haemophilus influenzae non-bFootnote *, invasive disease

Date of last revision/review: May 2008

National notification

Only confirmed cases of disease should be notified.

Type of surveillance

Routine case-by-case notification to the federal level

Enhanced case-by-case notification to International Circumpolar Surveillance in participating Northern regions

Enhanced, active case-by-case notification by paediatric tertiary care hospitals involved in the Immunization Monitoring Program, Active (IMPACT)

Case classification

Confirmed case

Clinical evidence of invasive disease (see section below) with laboratory confirmation of infection:

Clinical evidence

Clinical illness associated with invasive disease due to H. influenzae includes meningitis, bacteremia, epiglottitis, pneumonia, pericarditis, septic arthritis and empyema.

ICD code(s)

Note: ICD codes do not differentiate between b and non-b serotypes

ICD-10 code(s)

ICD-9/ICD-9CM code(s)


See Haemophilus influenzae serotype b, Invasive Disease.


Footnote *

Haemophilus influenzae non-b invasive disease includes serotypes a, c, d, e, f, undifferentiated and non-typeable isolates.

Return to footnote * referrer

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