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ICD-10-CM 2027

ICD-10 code for generalized epilepsy

Choose a code from the options below based on the documentation.

From the official ICD-10-CM alphabetic index entry “Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure) › generalized”. Page updated September 29, 2026.

About coding generalized epilepsy

The official ICD-10-CM index doesn't give a single default code for generalized epilepsy; the code depends on the details below.

More specific generalized epilepsy codes (official index)

  • idiopathic G40.309 — Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • intractable G40.319 — Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus
  • with status epilepticus G40.311 — Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus
  • without status epilepticus G40.319 — Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus
  • not intractable G40.309 — Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • with status epilepticus G40.301 — Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
  • without status epilepticus G40.309 — Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • specified NEC G40.409 — Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • intractable G40.419 — Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus
  • with status epilepticus G40.411 — Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus
  • without status epilepticus G40.419 — Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus
  • not intractable G40.409 — Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus
  • with status epilepticus G40.401 — Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus
  • without status epilepticus G40.409 — Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus

Common questions about generalized epilepsy ICD-10 codes

What is the ICD-10 code for idiopathic generalized epilepsy?

G40.309 — Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus.