ICD-10-CM category
J45 Asthma
J45 is a category, not a billable code. Report one of the 18 complete codes below.
Codes in J45
- J45.20Mild intermittent asthma, uncomplicated
- J45.21Mild intermittent asthma with (acute) exacerbation
- J45.22Mild intermittent asthma with status asthmaticus
- J45.30Mild persistent asthma, uncomplicated
- J45.31Mild persistent asthma with (acute) exacerbation
- J45.32Mild persistent asthma with status asthmaticus
- J45.40Moderate persistent asthma, uncomplicated
- J45.41Moderate persistent asthma with (acute) exacerbation
- J45.42Moderate persistent asthma with status asthmaticus
- J45.50Severe persistent asthma, uncomplicated
- J45.51Severe persistent asthma with (acute) exacerbation
- J45.52Severe persistent asthma with status asthmaticus
- J45.901Unspecified asthma with (acute) exacerbation
- J45.902Unspecified asthma with status asthmaticus
- J45.909Unspecified asthma, uncomplicated
- J45.990Exercise induced bronchospasm
- J45.991Cough variant asthma
- J45.998Other asthma
Outside the US? J45 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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