Chronic lower respiratory diseases (J40-J4A)
Browse all the diagnosis codes used for chronic lower respiratory diseases (j40-j4a). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.
Instructional Notations
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- bronchitis due to chemicals, gases, fumes and vapors J68.0
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- cystic fibrosis E84
Diseases of the respiratory system (J00–J99)
Chronic lower respiratory diseases (J40-J4A)
- J40 Bronchitis, not specified as acute or chronic
Bronchitis, not specified as acute or chronic (J40)
J41 Simple and mucopurulent chronic bronchitis
- J41.0 Simple chronic bronchitis
- J41.1 Mucopurulent chronic bronchitis
- J41.8 Mixed simple and mucopurulent chronic bronchitis
Simple and mucopurulent chronic bronchitis (J41)
- J42 Unspecified chronic bronchitis
Unspecified chronic bronchitis (J42)
J44 Other chronic obstructive pulmonary disease
- J44.0 Chronic obstructive pulmonary disease with (acute) lower respiratory infection
- J44.1 Chronic obstructive pulmonary disease with (acute) exacerbation
J44.8 Other specified chronic obstructive pulmonary disease NEW CODE
- J44.81 Bronchiolitis obliterans and bronchiolitis obliterans syndrome NEW CODE
- J44.89 Other specified chronic obstructive pulmonary disease NEW CODE
- J44.9 Chronic obstructive pulmonary disease, unspecified
Other chronic obstructive pulmonary disease (J44)
J45 Asthma
J45.2 Mild intermittent asthma
- J45.20 Mild intermittent asthma, uncomplicated
- J45.21 Mild intermittent asthma with (acute) exacerbation
- J45.22 Mild intermittent asthma with status asthmaticus
J45.3 Mild persistent asthma
- J45.30 Mild persistent asthma, uncomplicated
- J45.31 Mild persistent asthma with (acute) exacerbation
- J45.32 Mild persistent asthma with status asthmaticus
J45.4 Moderate persistent asthma
- J45.40 Moderate persistent asthma, uncomplicated
- J45.41 Moderate persistent asthma with (acute) exacerbation
- J45.42 Moderate persistent asthma with status asthmaticus
J45.5 Severe persistent asthma
- J45.50 Severe persistent asthma, uncomplicated
- J45.51 Severe persistent asthma with (acute) exacerbation
- J45.52 Severe persistent asthma with status asthmaticus
J45.9 Other and unspecified asthma
J45.90 Unspecified asthma
- J45.901 Unspecified asthma with (acute) exacerbation
- J45.902 Unspecified asthma with status asthmaticus
- J45.909 Unspecified asthma, uncomplicated
J45.99 Other asthma
- J45.990 Exercise induced bronchospasm
- J45.991 Cough variant asthma
- J45.998 Other asthma
Asthma (J45)
J47 Bronchiectasis
- J47.0 Bronchiectasis with acute lower respiratory infection
- J47.1 Bronchiectasis with (acute) exacerbation
- J47.9 Bronchiectasis, uncomplicated
Bronchiectasis (J47)
J4A Chronic lung allograft dysfunction NEW CODE
- J4A.0 Restrictive allograft syndrome NEW CODE
- J4A.8 Other chronic lung allograft dysfunction NEW CODE
- J4A.9 Chronic lung allograft dysfunction, unspecified NEW CODE
Chronic lung allograft dysfunction (J4A)