G40.81
Non-Billable
ChapterG00–G99
Ranksubcategory
Official Description
Lennox-Gastaut syndrome
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Non-billable category (requires more specific sub-code).
- •Chapter 6: Diseases of the Nervous System (G00-G99).
General instructions are available for the parent sections:
Clinical Hierarchy
CH6Diseases of the nervous system (G00-G99)
G40-G47Episodic and paroxysmal disorders (G40-G47)
G40Epilepsy and recurrent seizures
G40.8Other epilepsy and recurrent seizures
G40.81Lennox-Gastaut syndrome
G40.811Lennox-Gastaut syndrome, not intractable, with status epilepticus
G40.812Lennox-Gastaut syndrome, not intractable, without status epilepticus
G40.813Lennox-Gastaut syndrome, intractable, with status epilepticus
G40.814Lennox-Gastaut syndrome, intractable, without status epilepticus
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to G40.81:
Alphabetic Index Mentions
These are Diagnosis Index lookup paths that route to G40.81. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
14 raw paths
Lennox-Gastaut syndrome7 unique routes
Syndrome7 unique routes
MS-DRG Classification
No direct MS-DRG triggers identified.
Cross Reference
Find Procedures (ICD-10-PCS)
Find surgical and procedural codes related to Lennox-Gastaut syndrome.
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