ICD-9-CM diagnosis code (retired)
493.01 — Extrinsic asthma 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 493.01
493.01 is an ICD-9-CM diagnosis code for extrinsic asthma 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, J45.22 (Mild intermittent asthma with status asthmaticus). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- J45.22Mild intermittent asthma with status asthmaticusapproximate
Common questions about 493.01
What is the ICD-10 code for ICD-9 493.01?
- The GEMs map 493.01 to ICD-10-CM J45.22.
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.