CA45

ICD-11 MMS 2026-01

Respiratory infections, not elsewhere classified

Index terms

  • Respiratory infections, not elsewhere classified
  • respiratory infections not specified as acute, chronic, lower, or upper
  • respiratory tract infections not specified as acute, chronic, lower, or upper

Excludes

  • CA22 – Chronic obstructive pulmonary disease
  • http://id.who.int/icd/entity/1582386590 – Certain lower respiratory tract diseases
  • http://id.who.int/icd/entity/1971756453 – Upper respiratory tract disorders

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
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  • 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

Sibling codes

  • CA40 – Pneumonia
  • CA41 – Acute bronchiolitis
  • CA42 – Acute bronchitis
  • CA43 – Abscess of lung or mediastinum
  • CA44 – Pyothorax
  • CA4Y – Other specified lung infections
  • CA4Z – Lung infections, unspecified

Foundation entity

Respiratory infections, not elsewhere classified – http://id.who.int/icd/entity/413668698

Part of: 12: Diseases of the respiratory system