CA40.1

ICD-11 MMS 2026-01

Viral pneumonia

Description

A disease of the pulmonary system, caused by an infection with a viral source. This disease is characterised by fever, lethargy, headache, myalgia, vomiting, or coughing. Transmission is by inhalation of infected respiratory secretions. Confirmation is by identification of the viral source in a sputum sample.

Inclusions

  • bronchopneumonia due to viruses other than influenza viruses

Excludes

  • 1D65 – Severe acute respiratory syndrome
  • CA71 – Pneumonitis due to solids or liquids
  • CA71.0 – aspiration pneumonia
  • CA71.1 – lipid pneumonia
  • CB03 – Idiopathic interstitial pneumonitis
  • http://id.who.int/icd/entity/145723401 – Influenza
  • JA67.0 – Pulmonary complications of anaesthesia during pregnancy
  • JB0C.0 – Aspiration pneumonitis due to anaesthesia during labour or delivery
  • JB43.0 – Pulmonary complications of anaesthesia during the puerperium
  • KB24 – Congenital pneumonia

Exclusions from above levels

  • http://id.who.int/icd/entity/1324545867 – Pneumonitis
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Child codes

  • CA40.10 – Pneumonia due to Adenovirus
  • CA40.11 – Pneumonia due to Respiratory syncytial virus
  • CA40.12 – Pneumonia due to parainfluenza virus
  • CA40.13 – Pneumonia due to Human metapneumovirus
  • CA40.1Y – Pneumonia due to other specified virus
  • CA40.1Z – Viral pneumonia, unspecified

Sibling codes

  • CA40.0 – Bacterial pneumonia
  • CA40.2 – Fungal pneumonia
  • CA40.Y – Other specified pneumonia
  • CA40.Z – Pneumonia, organism unspecified

Foundation entity

Viral pneumonia – http://id.who.int/icd/entity/1024154490

Allowed postcoordination axes

Part of: CA40: Pneumonia › 12: Diseases of the respiratory system