ICD-9-CM diagnosis code (retired)
345.3 — Grand mal status
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 345.3
345.3 is an ICD-9-CM diagnosis code for grand mal status. 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, G40.301 (Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus). The match is approximate, so confirm it against the record.
ICD-10-CM equivalents
- G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticusapproximate
Common questions about 345.3
What is the ICD-10 code for ICD-9 345.3?
- The GEMs map 345.3 to ICD-10-CM G40.301.
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.