ICD-10-CM > G00-G99 > G40-G47 > G40 > G40.8 > G40.81 G40.81 Lennox-Gastaut syndrome Non-Billable/Non-Specific Codes G40.811Lennox-Gastaut syndrome, not intractable, with status epilepticusG40.812Lennox-Gastaut syndrome, not intractable, without status epilepticusG40.813Lennox-Gastaut syndrome, intractable, with status epilepticusG40.814Lennox-Gastaut syndrome, intractable, without status epilepticus
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