G40.84
Header — not billableKCNQ2-related epilepsy
The ICD-10 code for kcnq2-related epilepsy is G40.84.
G40.84 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under G40.84
Related codes in this category
- G40.80Other epilepsynon-billable header
- G40.81Lennox-Gastaut syndromenon-billable header
- G40.82Epileptic spasmsnon-billable header
- G40.83Dravet syndromenon-billable header
- G40.89Other seizures
- G40.84KCNQ2-related epilepsynon-billable header