Severe persistent asthma unspecified icd 10 July 8, 2019 16 32 64 128 Severe asthma with exacerbation unspecified whether persistent icd 10 Severe asthma without complication unspecified whether persistent icd 10 Severe asthma with status asthmaticus unspecified whether persistent icd 10 Severe persistent asthma icd 10 Moderate persistent asthma icd 10