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G40.31

⚠ Non-billable (Header)

Generalized idiopathic epilepsy and epileptic syndromes, intractable

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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✅ No additional coding notes for G40.31

Child Codes (2)

G40.311Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticusG40.319Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus

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Code Information

CodeG40.31
BillableNo — Header code
ParentG40.3
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes20 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)