ICD-10-CM > J00-J99 > J40-J4A > J45 > J45.2 J45.2 Mild intermittent asthma Non-Billable/Non-Specific Codes J45.20Mild intermittent asthma, uncomplicatedJ45.21Mild intermittent asthma with (acute) exacerbationJ45.22Mild intermittent asthma with status asthmaticus