National case definition:  Acquired immune deficiency syndrome (AIDS)

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.

Case classification

Confirmed case

  • 1 or more of the specified indicator diseases (see clinical evidence section)


  • meeting the case definition of HIV infection

Laboratory comments

See case definition of HIV infection.

Clinical evidence

Indicator diseases for adult and pediatric cases:

  • Bacterial pneumonia (recurrent)Footnote *
  • Candidiasis (bronchi, trachea or lungs)
  • Candidiasis (esophageal)Footnote *
  • Cervical cancer (invasive)
  • Coccidioidomycosis (disseminated or extrapulmonary)
  • Cryptococcosis (extrapulmonary)
  • Cryptosporidiosis chronic intestinal (> 1 month duration)
  • Cytomegalovirus diseases (other than in liver, spleen or nodes)
  • Cytomegalovirus retinitis (with loss of vision)Footnote *
  • Encephalopathy, HIV-related (dementia)
  • Herpes simplex: chronic ulcer(s) (> 1 month duration) or bronchitis, pneumonitis or esophagitis
  • Histoplasmosis (disseminated or extrapulmonary)
  • Isosporiasis, chronic intestinal (> 1 month duration)
  • Kaposi's sarcomaFootnote *
  • Lymphoma, Burkitt's (or equivalent term)
  • Lymphoma, immunoblastic (or equivalent term)
  • Lymphoma (primary in brain)
  • Mycobacterium avium complex or M. kansasii (disseminated or extrapulmonary)Footnote *
  • Mycobacterium of other species or unidentified speciesFootnote *
  • M. tuberculosis (disseminated or extrapulmonary)
  • M. tuberculosis (pulmonary)Footnote *
  • Pneumocystis jirovecii (formerly Pneumocystis carinii) pneumonia (PCP)Footnote *
  • Progressive multifocal leukoencephalopathy
  • Salmonella septicemia (recurrent)
  • Toxoplasmosis of brainFootnote *
  • Wasting syndrome due to HIV

Indicator diseases that apply only to pediatric cases (< 15 years old):

  • Bacterial infections (multiple or recurrent, excluding recurrent bacterial pneumonia)
  • Lymphoid interstitial pneumonia and/or pulmonary lymphoid hyperplasiaFootnote *

ICD code(s)

ICD-10 code(s)

  • B20-B24

ICD-9 code(s)

  • 042-044

Type of international reporting

Informal sharing of data on a regular basis with the WHO, Pan American Health Organization and Joint United Nations Programme on HIV/AIDS.


Case definitions for diseases under national surveillance. CCDR 2000;26(S3).

Footnote *

These conditions may be diagnosed presumptively; otherwise, definitive diagnosis is required. Criteria for presumptive and definitive diagnoses are provided on the back of the HIV/AIDS case report form.

Return to footnote * referrer

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