Haemophilus influenza non-b^*, Invasive Disease

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Nationally notifiable since 2007

1.0 National Notification

Only confirmed cases of disease* should be notified.

2.0 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)

3.0 Case Classification

3.1 Confirmed case

Clinical evidence of invasive disease(see section 5.0) with laboratory confirmation of infection:

• isolation of H. influenzae (serotype a,c,d,e,f, undifferentiated and non-typeable isolates) from a normally sterile site
  OR
• isolation of H. influenzae (serotype a,c,d,e,f, undifferentiated and non-typeable isolates) from the epiglottis in a person with epiglottitis

4.0 Laboratory Comments

5.0 Clinical Evidence

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

6.0 ICD Code(s)

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

6.1 ICD-10 Code(s)

A41.3

Septicaemia due to Haemophilus influenzae

A49.2

H. influenzae infection, unspecified site

B96.3

H. influenzae as cause of disease classified elsewhere

G00.0

Meningitis due to Haemophilus influenzae

J05.1

Acute epiglottitis

J14

Pneumonia due to Haemophilus influenzae

P23.6

Congenital pneumonia due to Haemophilus influenzae

6.2 ICD-9/ICD-9CM Code(s)

038.41

Septicaemia due to Haemophilus influenzae

041.5

H. influenzae infection of unspecified site and in conditions classified elsewhere

320.0

Meningitis due to Haemophilus influenzae

464.3

Acute epiglottitis

482.2

Pneumonia due to Haemophilus influenzae

7.0 Type of International Reporting

8.0 Comments

See Haemophilus influenzae serotype b, Invasive Disease.

9.0 References

Date of Last Revision/Review:

May 2008

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