• bronchitis due to chemicals, gases, fumes and vapors (J68.0)


  • cystic fibrosis (E84.-)
  1. J44 Other chronic obstructive pulmonary disease

    Use additional code to identify:
    exposure to environmental tobacco smoke (Z77.22)
    history of tobacco dependence (Z87.891)
    occupational exposure to environmental tobacco smoke (Z57.31)
    tobacco dependence (F17.-)
    tobacco use (Z72.0)


    • asthma with chronic obstructive pulmonary disease
    • chronic asthmatic (obstructive) bronchitis
    • chronic bronchitis with airway obstruction
    • chronic bronchitis with emphysema
    • chronic emphysematous bronchitis
    • chronic obstructive asthma
    • chronic obstructive bronchitis
    • chronic obstructive tracheobronchitis


    • bronchiectasis (J47.-)
    • chronic bronchitis NOS (J42)
    • chronic simple and mucopurulent bronchitis (J41.-)
    • chronic tracheitis (J42)
    • chronic tracheobronchitis (J42)
    • emphysema without chronic bronchitis (J43.-)
    1. J44.0 Chronic obstructive pulmonary disease with (acute) lower respiratory infection

    2. J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation

      Inclusion term(s):

      • Decompensated COPD
      • Decompensated COPD with (acute) exacerbation
    3. J44.9 Chronic obstructive pulmonary disease, unspecified

      Inclusion term(s):

      • Chronic obstructive airway disease NOS
      • Chronic obstructive lung disease NOS
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.