G40.309
Billable codeGeneralized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
The ICD-10 code for generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus is G40.309.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Generalized idiopathic epilepsy and epileptic syndromes NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G40.301Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus
- G40.309Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 34510Approximate match
Associated MS-DRGs
G40.309 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.