ICD-9-CM diagnosis code (retired)
345.91 — Epilepsy, unspecified, with intractable epilepsy
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 345.91
345.91 is an ICD-9-CM diagnosis code for epilepsy, unspecified, with intractable epilepsy. 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 2 ICD-10-CM codes, such as G40.911 (Epilepsy, unspecified, intractable, with status epilepticus) and G40.919 (Epilepsy, unspecified, intractable, without status epilepticus). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 345.91
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.