G40.812 Lennox-Gastaut syndrome, not intractable, without status epilepticus
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The ICD-10-CM code for Lennox-Gastaut syndrome, not intractable, without status epilepticus is G40.812 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- G40-G47: Episodic and paroxysmal disorders (G40-G47)
- Category G40
- 94 codes (58 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to G40.812:
- Lennox-Gastaut syndrome
- Lennox-Gastaut syndrome › not intractable
- Syndrome › Lennox-Gastaut
- Syndrome › Lennox-Gastaut › not intractable
- Lennox-Gastaut syndrome › not intractable › without status epilepticus
- Syndrome › Lennox-Gastaut › not intractable › without status epilepticus
U.S. Hospital Utilization
- An estimated 6,710 U.S. inpatient stays in 2023 included G40.812 among the documented diagnoses.
- 1,070 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Dominant/nondominant side (TOC entry)a. Dominant/nondominant side ................................................................................................. 45
Pain - Category G89 (TOC entry)b. Pain - Category G89.............................................................................................................. 45
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference G40.812 with the canonical source and edition:
G40.812 — Lennox-Gastaut syndrome, not intractable, without status epilepticus. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/G40.812
Canonical URL: https://icd10codingpro.com/codes/G40.812