ICD-10-CM · Category
G40.0 — Local-rel (focal) idio epilepsy w seizures of loc onset
Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
Chapter G00-G99: Diseases of the nervous system
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Related diagnoses
G40.1Local-rel (focal) symptc epilepsy w simple partial seizuresG40.2Local-rel (focal) symptc epilepsy w complex partial seizuresG40.3Generalized idiopathic epilepsy and epileptic syndromesG40.AAbsence epileptic syndromeG40.BJuvenile myoclonic epilepsy [impulsive petit mal]G40.CLafora progressive myoclonus epilepsyG40.4Other generalized epilepsy and epileptic syndromesG40.5Epileptic seizures related to external causesG40.8Other epilepsy and recurrent seizuresG40.9Epilepsy, unspecified
Common questions about G40.0 (Local-rel (focal) idio epilepsy w seizures of loc onset)
What does ICD-10 code G40.0 mean?
G40.0 is the ICD-10-CM 2025 code for Local-rel (focal) idio epilepsy w seizures of loc onset. Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is G40.0 a billable diagnosis code?
G40.0 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under G40.0. Browse the sub-codes listed on this page.
Which ICD-10 chapter does G40.0 belong to?
G40.0 belongs to the chapter "Diseases of the nervous system" (codes G00-G99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Local-rel (focal) idio epilepsy w seizures of loc onset?
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Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗