G40.4
Other generalized epilepsy and epileptic syndromes
- Release
- FY 2027
- Effective
Hierarchy
Where G40.4 sits in the official hierarchy. Each level is the code it is classified under.
- G40 Parent Epilepsy and recurrent seizures
- G40.4 This code Other generalized epilepsy and epileptic syndromes
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Inclusion Terms
Epilepsy with grand mal seizures on awakening
Inclusion Terms
Epilepsy with myoclonic absences
Inclusion Terms
Epilepsy with myoclonic-astatic seizures
Inclusion Terms
Grand mal seizure NOS
Inclusion Terms
Nonspecific atonic epileptic seizures
Inclusion Terms
Nonspecific clonic epileptic seizures
Inclusion Terms
Nonspecific myoclonic epileptic seizures
Inclusion Terms
Nonspecific tonic epileptic seizures
Inclusion Terms
Nonspecific tonic-clonic epileptic seizures
Inclusion Terms
Symptomatic early myoclonic encephalopathy
More Specific Codes
3 codes under G40.4
Version History
How G40.4 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentOther generalized epilepsy and epileptic syndromes
-
FY 2026 Effective
UnchangedOther generalized epilepsy and epileptic syndromes
Related Codes
Other codes under G40
- G40.0 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
- G40.1 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
- G40.2 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
- G40.3 Generalized idiopathic epilepsy and epileptic syndromes
- G40.A Absence epileptic syndrome
- G40.B Juvenile myoclonic epilepsy [impulsive petit mal]
- G40.C Lafora progressive myoclonus epilepsy
- G40.5 Epileptic seizures related to external causes
- G40.8 Other epilepsy and recurrent seizures
- G40.9 Epilepsy, unspecified
Codes whose official notes reference G40.4
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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