CA24

ICD-11 MMS 2026-01

Bronchiectasis

Description

Bronchiectasis is an abnormal widening of one or more airways. Normally, tiny glands in the lining of the airways make a small amount of mucus. Mucus keeps the airways moist and traps any dust and dirt in the inhaled air. Because bronchiectasis creates an abnormal widening of the airways, extra mucus tends to form and pool in parts of the widened airways. Widened airways with extra mucus are prone to infection.

Index terms

  • Bronchiectasis
  • bronchiectasis NOS
  • Bronchiectasis with airway obstruction
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  • Dilatation of bronchus
  • bronchial dilatation
  • Bronchiolectasis
  • Cylindrical bronchiectasis
  • Fusiform bronchiectasis
  • Saccular bronchiectasis

Excludes

  • 1B10.0 – tuberculous bronchiectasis, confirmed
  • 1B10.1 – Respiratory tuberculosis, not confirmed

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

  • CA20 – Bronchitis
  • CA21 – Emphysema
  • CA22 – Chronic obstructive pulmonary disease
  • CA23 – Asthma
  • CA25 – Cystic fibrosis
  • CA26 – Chronic bronchiolitis
  • CA27 – Tracheobronchitis
  • CA2Y – Other specified lower respiratory tract disease
  • CA2Z – Lower respiratory tract disease, unspecified

Foundation entity

Bronchiectasis – http://id.who.int/icd/entity/1935524933

Allowed postcoordination axes

Part of: 12: Diseases of the respiratory system