G40.813
✓ BillableLennox-Gastaut syndrome, intractable, with status epilepticus
Diseases of the nervous system (G00-G99)
✅ No additional coding notes for G40.813
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CodeG40.813
BillableYes
ParentG40.81
CategoryDiseases of the nervous system (G00-G99)
Excludes10 rule(s)
Excludes20 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)