G40.842
Billable codeKCNQ2-related epilepsy, not intractable, without status epilepticus
The ICD-10 code for kcnq2-related epilepsy, not intractable, without status epilepticus is G40.842.
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.
- KCNQ2-related epilepsy 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
- G40.841KCNQ2-related epilepsy, not intractable, with status epilepticus
- G40.843KCNQ2-related epilepsy, intractable, with status epilepticus
- G40.844KCNQ2-related epilepsy, intractable, without status epilepticus
- G40.842KCNQ2-related epilepsy, not intractable, without status epilepticus
Associated MS-DRGs
G40.842 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.