J45.21 Mild intermittent asthma with (acute) exacerbation
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Mild intermittent asthma with (acute) exacerbation
Related codes
J45.20Mild intermittent asthma, uncomplicated ICD-10-CMJ45.22Mild intermittent asthma with status asthmaticus ICD-10-CMJ45.30Mild persistent asthma, uncomplicated ICD-10-CMJ45.31Mild persistent asthma with (acute) exacerbation ICD-10-CMJ45.32Mild persistent asthma with status asthmaticus ICD-10-CMJ45.40Moderate persistent asthma, uncomplicated ICD-10-CMJ45.41Moderate persistent asthma with (acute) exacerbation ICD-10-CMJ45.42Moderate persistent asthma with status asthmaticus ICD-10-CM
Common questions
Is J45.21 a billable code?
Yes. J45.21 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.