ICD-10-CM>J00-J99>J40-J4B>J45>J45.9>J45.90J45.90Unspecified asthmaNon-Billable/Non-SpecificApplicable ToAsthmatic bronchitis NOSChildhood asthma NOSLate onset asthmaCodesJ45.901Unspecified asthma with (acute) exacerbationJ45.902Unspecified asthma with status asthmaticusJ45.909Unspecified asthma, uncomplicated