CA22.1

ICD-11 MMS 2026-01

Certain specified chronic obstructive pulmonary disease

Coding note

Use additional code to identify any associated respiratory tract infection.

Index terms

  • Certain specified chronic obstructive pulmonary disease
  • Other specified chronic obstructive pulmonary disease, very severe airflow limitation
  • Other specified chronic obstructive pulmonary disease, FEV1 less than 30% predicted
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  • Other specified chronic obstructive pulmonary disease, Gold 4
  • Other specified chronic obstructive pulmonary disease, severe airflow limitation
  • Other specified chronic obstructive pulmonary disease, 30% equal to or less than FEV1 less than 50% predicted
  • Other specified chronic obstructive pulmonary disease, Gold 3
  • Other specified chronic obstructive pulmonary disease, moderate airflow limitation
  • Other specified chronic obstructive pulmonary disease, 50% equal to or less than FEV1 less than 80% predicted
  • Other specified chronic obstructive pulmonary disease, Gold 2
  • Other specified chronic obstructive pulmonary disease, mild airflow limitation
  • Other specified chronic obstructive pulmonary disease, FEV1 greater than or equal to 80% predicted
  • Other specified chronic obstructive pulmonary disease, Gold 1
  • Chronic obstructive pulmonary disease with acute lower respiratory infection
  • COPD - [chronic obstructive pulmonary disease] with respiratory infection
  • acute infective exacerbation of chronic obstructive pulmonary disease
  • infective exacerbation of chronic obstructive airways disease
  • infective exacerbation of chronic obstructive pulmonary disease
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, very severe airflow limitation
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, FEV1 less than 30% predicted
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, Gold 4
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, severe airflow limitation
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, 30% equal to or less than FEV1 less than 50% predicted
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, Gold 3
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, moderate airflow limitation
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, 50% equal to or less than FEV1 less than 80% predicted
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, Gold 2
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, mild airflow limitation
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, FEV1 greater than or equal to 80% predicted
  • Chronic obstructive pulmonary disease with acute lower respiratory infection, Gold 1
  • Obstructive infective bronchitis
  • Chronic obstructive pulmonary disease with pneumonia
  • Chronic obstructive tracheobronchitis
  • Asthma with chronic obstructive pulmonary disease
  • Chronic obstructive asthma
  • Asthmatic dyspnoea with chronic bronchitis
  • Bronchitis with chronic obstructive pulmonary disease
  • bronchitis obstruction
  • bronchitis with airway obstruction
  • bronchitis with chronic airway obstruction
  • chronic bronchitis obliterans
  • chronic obstructive bronchitis, NOS
  • diffuse obstructive bronchitis
  • obstructive bronchitis
  • Chronic asthmatic and obstructive bronchitis, not otherwise specified
  • chronic asthmatic bronchitis
  • Lung disease with obstructive bronchitis
  • Subacute obliterative bronchiolitis
  • Obstructive laryngobronchitis

Excludes

  • CA22.0 – Chronic obstructive pulmonary disease with acute exacerbation, unspecified

Exclusions from above levels

  • CA20.1 – chronic tracheobronchitis
  • CA20.1Z – Simple or mucopurulent chronic bronchitis
  • CA21 – Emphysema
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  • CA23 – Asthma
  • CA23.3 – asthmatic bronchitis NOS
  • CA24 – Bronchiectasis
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 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

Sibling codes

  • CA22.0 – Chronic obstructive pulmonary disease with acute exacerbation, unspecified
  • CA22.Z – Chronic obstructive pulmonary disease, unspecified

Foundation entity

Certain specified chronic obstructive pulmonary disease – http://id.who.int/icd/entity/143605159

Allowed postcoordination axes

Part of: CA22: Chronic obstructive pulmonary disease › 12: Diseases of the respiratory system