ICD-10 Code for Asthma

The default ICD-10-CM 2027 code for asthma, asthmatic (bronchial) (catarrh) (spasmodic) is J45.909 – Unspecified asthma, uncomplicated. More specific codes depend on the details documented, as listed in the official index (31 codes, 31 billable).

Main code: J45.909 – Unspecified asthma, uncomplicated
Billable: Yes

Index entries for Asthma

with
- chronic obstructive bronchitis – J44.89
  - with
    - acute lower respiratory infection – J44.0
    - exacerbation (acute) – J44.1
- chronic obstructive pulmonary disease – J44.89
  - with
    - acute lower respiratory infection – J44.0
    - exacerbation (acute) – J44.1
- exacerbation (acute) – J45.901
- hay fever – see Asthma, allergic extrinsic
- rhinitis, allergic – see Asthma, allergic extrinsic
- status asthmaticus – J45.902
allergic extrinsic – J45.909
- with
  - exacerbation (acute) – J45.901
  - status asthmaticus – J45.902
atopic – see Asthma, allergic extrinsic
cardiac – see Failure, ventricular, left
cardiobronchial – I50.1
childhood – J45.909
- with
  - exacerbation (acute) – J45.901
  - status asthmaticus – J45.902
chronic obstructive – J44.89
- with
  - acute lower respiratory infection – J44.0
  - exacerbation (acute) – J44.1
collier's – J60
cough variant – J45.991
detergent – J69.8
due to
- detergent – J69.8
- inhalation of fumes – J68.3
eosinophilic – J82.83
extrinsic, allergic – see Asthma, allergic extrinsic
grinder's – J62.8
hay – see Asthma, allergic extrinsic
heart – I50.1
idiosyncratic – see Asthma, nonallergic
intermittent (mild) – J45.20
- with
  - exacerbation (acute) – J45.21
  - status asthmaticus – J45.22
intrinsic, nonallergic – see Asthma, nonallergic
Kopp's – E32.8
late-onset – J45.909
- with
  - exacerbation (acute) – J45.901
  - status asthmaticus – J45.902
mild intermittent – J45.20
- with
  - exacerbation (acute) – J45.21
  - status asthmaticus – J45.22
mild persistent – J45.30
- with
  - exacerbation (acute) – J45.31
  - status asthmaticus – J45.32
Millar's (laryngismus stridulus) – J38.5
miner's – J60
mixed – J45.909
- with
  - exacerbation (acute) – J45.901
  - status asthmaticus – J45.902
moderate persistent – J45.40
- with
  - exacerbation (acute) – J45.41
  - status asthmaticus – J45.42
nervous – see Asthma, nonallergic
nonallergic (intrinsic) – J45.909
- with
  - exacerbation (acute) – J45.901
  - status asthmaticus – J45.902
persistent
- mild – J45.30
  - with
    - exacerbation (acute) – J45.31
    - status asthmaticus – J45.32
- moderate – J45.40
  - with
    - exacerbation (acute) – J45.41
    - status asthmaticus – J45.42
- severe – J45.50
  - with
    - exacerbation (acute) – J45.51
    - status asthmaticus – J45.52
platinum – J45.998
pneumoconiotic NEC – J64
potter's – J62.8
predominantly allergic – J45.909
psychogenic – F54
pulmonary eosinophilic – J82.83
red cedar – J67.8
Rostan's – I50.1
sandblaster's – J62.8
sequoiosis – J67.8
severe persistent – J45.50
- with
  - exacerbation (acute) – J45.51
  - status asthmaticus – J45.52
specified NEC – J45.998
stonemason's – J62.8
thymic – E32.8
tuberculous – see Tuberculosis, pulmonary
Wichmann's (laryngismus stridulus) – J38.5
wood – J67.8

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.