ICD-9-CM diagnosis code (retired)
346.31 — Hemiplegic migraine, with intractable migraine, so stated, without mention of status migrainosus
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 346.31
346.31 is an ICD-9-CM diagnosis code for hemiplegic migraine, with intractable migraine, so stated, without mention of status migrainosus. 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, G43.419 (Hemiplegic migraine, intractable, without status migrainosus). The match is exact.
ICD-10-CM equivalents
- G43.419Hemiplegic migraine, intractable, without status migrainosusexact match
Common questions about 346.31
What is the ICD-10 code for ICD-9 346.31?
- The GEMs map 346.31 to ICD-10-CM G43.419.
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.