Chapter X
Diseases of the respiratory system
(J00-J99)

Rules Conventions GCS

Chronic lower respiratory diseases
(J40-J47)

Excl.:
cystic fibrosis ( E84.-)

J40 Bronchitis, not specified as acute or chronic
DCS.X.5

Note:

Bronchitis not specified as acute or chronic in those under 15 years of age can be assumed to be of acute nature and should be classified to J20.-.

Incl.:
Bronchitis:
  • NOS
  • catarrhal
  • with tracheitis NOS
Tracheobronchitis NOS
Excl.:
bronchitis:

J41 Simple and mucopurulent chronic bronchitis

Excl.:
chronic bronchitis:
J41.0 Simple chronic bronchitis
J41.1 Mucopurulent chronic bronchitis
J41.8 Mixed simple and mucopurulent chronic bronchitis

J42 Unspecified chronic bronchitis

Incl.:
Chronic:
  • bronchitis NOS
  • tracheitis
  • tracheobronchitis
Excl.:
chronic:
  • asthmatic bronchitis (J44.-)
  • bronchitis:
    • —  simple and mucopurulent (J41.-)
    • —  with airways obstruction (J44.-)
  • emphysematous bronchitis (J44.-)
  • obstructive pulmonary disease NOS (J44.9)

J43 Emphysema

Excl.:
emphysema:
  • compensatory (J98.3)
  • due to inhalation of chemicals, gases, fumes or vapours (J68.4)
  • interstitial (J98.2)
  • interstitial
  • mediastinal (J98.2)
  • surgical (subcutaneous) (T81.8)
  • traumatic subcutaneous (T79.7)
  • with chronic (obstructive) bronchitis (J44.-)
emphysematous (obstructive) bronchitis ( J44.-)
J43.0 MacLeod syndrome
Incl.:
Unilateral:
  • emphysema
  • transparency of lung
J43.1 Panlobular emphysema
Incl.:
Panacinar emphysema
J43.2 Centrilobular emphysema
J43.8 Other emphysema
J43.9 Emphysema, unspecified
DCS.X.5
Incl.:
Emphysema (lung)(pulmonary):
  • NOS
  • bullous
  • vesicular
Emphysematous bleb

J44 Other chronic obstructive pulmonary disease
DCS.X.5

Incl.:
chronic:
  • bronchitis:
    • —  asthmatic (obstructive)
    • —  emphysematous
    • —  with:
      • —  airways obstruction
      • —  emphysema
  • obstructive:
    • —  asthma
    • —  bronchitis
    • —  tracheobronchitis
Excl.:
asthma ( J45.-)
asthmatic bronchitis NOS ( J45.9)
bronchiectasis ( J47)
chronic:
  • bronchitis:
    • —  NOS (J42)
    • —  simple and mucopurulent (J41.-)
  • tracheitis (J42)
  • tracheobronchitis (J42)
emphysema ( J43.-)
lung diseases due to external agents ( J60-J70)
J44.0 Chronic obstructive pulmonary disease with acute lower respiratory infection
Excl.:
with influenza ( J09-J11)
J44.1 Chronic obstructive pulmonary disease with acute exacerbation, unspecified
J44.8 Other specified chronic obstructive pulmonary disease
Incl.:
Chronic bronchitis:
  • asthmatic (obstructive) NOS
  • emphysematous NOS
  • obstructive NOS
Excl.:
with acute exacerbation ( J44.1)
with acute lower respiratory infection ( J44.0)
J44.9 Chronic obstructive pulmonary disease, unspecified
Incl.:
Chronic obstructive:
  • airway disease NOS
  • lung disease NOS

J45 Asthma
DCS.X.5

Excl.:
acute severe asthma ( J46)
chronic asthmatic (obstructive) bronchitis ( J44.-)
chronic obstructive asthma ( J44.-)
eosinophilic asthma ( J82)
lung diseases due to external agents ( J60-J70)
status asthmaticus ( J46)
J45.0 Predominantly allergic asthma
Incl.:
Allergic:
  • bronchitis NOS
  • rhinitis with asthma
Atopic asthma
Extrinsic allergic asthma
Hay fever with asthma
J45.1 Nonallergic asthma
Incl.:
Idiosyncratic asthma
Intrinsic nonallergic asthma
J45.8 Mixed asthma
Incl.:
Combination of conditions listed in J45.0 and J45.1
J45.9 Asthma, unspecified
Incl.:
Asthmatic bronchitis NOS
Late-onset asthma

J46 Status asthmaticus
DCS.X.5 DCS.X.6

Incl.:
Acute severe asthma

J47 Bronchiectasis

Incl.:
Bronchiolectasis
Excl.:
congenital bronchiectasis ( Q33.4)
tuberculous bronchiectasis (current disease) ( A15-A16)