ICD-11 classes
01 Certain infectious or parasitic diseases

ICD-11 Influenza

Any disease of the respiratory system, caused by an infection with influenza virus. These diseases are characterised by fever, cough, headache, myalgia, arthralgia, or malaise. Transmission is by inhalation of infected respiratory secretions. Confirmation is by identification of influenza virus from a nasopharyngeal, nose, or throat swab.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 3 clarifying diagnoses:

  1. 1E30 — Influenza due to identified seasonal influenza virus
  2. 1E31 — Influenza due to identified zoonotic or pandemic influenza virus
  3. 1E32 — Influenza, virus not identified

The diagnosis is coded elsewhere:

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