ICD-9-CM diagnosis code (retired)
493.91 — Asthma, unspecified type, with status asthmaticus
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 493.91
493.91 is an ICD-9-CM diagnosis code for asthma, unspecified type, with status asthmaticus. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, J45.902 (Unspecified asthma with status asthmaticus). The match is exact.
ICD-10-CM equivalents
- J45.902Unspecified asthma with status asthmaticusexact match
Common questions about 493.91
What is the ICD-10 code for ICD-9 493.91?
- The GEMs map 493.91 to ICD-10-CM J45.902.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.