Seizures originating in the diencephalon region of the brain, which may cause autonomic or emotional symptoms.
Because the rating turns on how frequently seizures occur, medical records documenting each seizure event are central. Treatment notes, neurology records, and emergency or urgent care visits that record the date, type, and description of each seizure help establish frequency over the relevant time period — the last six months, last year, or last two years, depending on the rating level being considered.
A confirmed diagnosis of epilepsy is required for even the lowest 10 percent rating, so diagnostic records establishing that confirmed diagnosis matter at every level. If you take medication to control the seizures, pharmacy records and prescribing notes showing that continuous medication is necessary support the 10 percent minimum floor.
Statements from you, family members, or caregivers describing witnessed seizures — including how often they happen and what they look like — can fill gaps when a seizure occurs outside a medical setting. For higher rating levels, where frequency must be shown across a full year or longer, a consistent record of documented events over that entire period carries the most weight.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.