ICD-11 classes
01 Certain infectious or parasitic diseases
Other bacterial diseases
Other diseases due to chlamydiae
1C22 — Infections due to Chlamydia psittaci

ICD-11 1C22 — Infections due to Chlamydia psittaci

Any condition caused by an infection with the gram-negative bacteria Chlamydia psittaci. These conditions are characterised by variable clinical presentations such as fever, cough, headaches, chills, fatigue, nausea, vomiting, diarrhoea, or pneumonia. Transmission is commonly by inhalation of aersol contaminated with body fluids from infected birds, or direct contact with infected birds. Confirmation is by identification of Chlamydia psittaci.

It includes 3 items.

  • Psittacosis
  • Ornithosis
  • Parrot fever

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is included in 1 another class.

  • Pneumonia in chlamydia psittaci infection (CA40.0Y)

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