Epilepsy VA Rating

Epilepsy is rated under 38 CFR § 4.124a (opens in a new tab) on a single axis that most other conditions don't share: how often you seize, and what kind of seizures you have. There's no goniometer, no audiogram, no pulmonary function test. The General Rating Formula for Major and Minor Epileptic Seizures takes the number of major seizures over the last year or two and the number of minor seizures per week and converts those counts directly into a percentage. That sounds clean. In practice it's the source of most of the trouble, because the evidence of frequency almost never exists in the form the rating needs.

Here's the structural problem. A seizure happens, often, when no clinician is in the room. The veteran is unconscious during a major seizure and has no memory of it. The C&P examiner sees the veteran on one ordinary day, observes no seizure, and writes down what the veteran reports. An EEG between seizures is frequently normal. So the rating turns on a frequency the VA can't directly observe and the veteran can't always self-report. That is why lay and witness evidence carries more weight in an epilepsy claim than in nearly any other condition I look at. A dated seizure log, a spouse's description of what a seizure looks like, and an account of the hours afterward are often the only frequency evidence in the file.

This page covers the five epilepsy diagnostic codes, the seizure formula and what each level requires, the difference between major and minor seizures, the physician-confirmation rule that trips up so many claims, the TBI rule for secondary claims, and why VA denies epilepsy claims. The Board data on epilepsy is striking: more than half of decided epilepsy rulings get remanded, more than are granted and denied combined.

TL;DR

• Epilepsy is rated under 38 CFR § 4.124a using the General Rating Formula for Major and Minor Epileptic Seizures. DC 8910 covers grand mal, DC 8911 petit mal, DC 8912 Jacksonian and focal motor or sensory, DC 8913 diencephalic, and DC 8914 psychomotor. All five route through the same formula.
• A major seizure is a generalized tonic-clonic convulsion with unconsciousness. A minor seizure is a brief interruption in consciousness or conscious control. Major seizures are counted over months and years, minor seizures per week, and when both types occur VA rates the predominating type.
• The levels run from 10% (a confirmed diagnosis with a history of seizures) to 100% (averaging at least one major seizure per month over the last year). When continuous medication is needed to control epilepsy, the minimum is 10%.
• To warrant a rating, the seizures must be witnessed or verified at some time by a physician under 38 CFR § 4.121. Competent, consistent lay testimony can then establish how often they happen.
• That is why witness evidence matters more here than almost anywhere. A seizure diary with dates, witness descriptions and recovery accounts is often the only frequency evidence in the record.
• After a moderate or severe service-connected TBI, VA treats unprovoked seizures as secondary to the TBI unless there is clear evidence to the contrary (38 CFR § 3.310(d)). Epilepsy is also on the chronic disease list, with a one-year presumption after separation.
• Special monthly compensation and individual unemployability can come into play when seizures make you unsafe alone or unable to hold a job.
• Across 1,746 decided Board rulings on epilepsy from 2021 to 2026, 19.3% were granted, 28.6% denied and 52.1% remanded. A ruling is one issue the Board decided in one decision; one decision often rules on several issues.

Epilepsy VA rating criteria (DC 8910 to 8914)

Epilepsy in § 4.124a is split across five diagnostic codes by seizure type, but they all feed into one rating formula. The code identifies what kind of seizure you have. The General Rating Formula for Major and Minor Epileptic Seizures sets the percentage. Here is the formula as it reads in the current regulation.

100 percent: Averaging at least 1 major seizure per month over the last year

80 percent: Averaging at least 1 major seizure in 3 months over the last year; or more than 10 minor seizures weekly

60 percent: Averaging at least 1 major seizure in 4 months over the last year; or 9-10 minor seizures per week

40 percent: At least 1 major seizure in the last 6 months or 2 in the last year; or averaging at least 5 to 8 minor seizures weekly

20 percent: At least 1 major seizure in the last 2 years; or at least 2 minor seizures in the last 6 months

10 percent: A confirmed diagnosis of epilepsy with a history of seizures

Three notes sit under the formula. Note (1): "When continuous medication is shown necessary for the control of epilepsy, the minimum evaluation will be 10 percent. This rating will not be combined with any other rating for epilepsy." Note (2): "In the presence of major and minor seizures, rate the predominating type." Note (3): "There will be no distinction between diurnal and nocturnal major seizures." The same section also says a psychiatric disorder shown to be secondary to or directly associated with epilepsy is rated separately.

The five epilepsy diagnostic codes

DC 8910, epilepsy, grand mal. Rated under the formula for major seizures.

DC 8911, epilepsy, petit mal. Rated under the formula for minor seizures.

DC 8912, epilepsy, Jacksonian and focal motor or sensory, and DC 8913, epilepsy, diencephalic. The regulation lists these two together, followed by one instruction: rate as minor seizures, except that when major and minor seizures are both present, rate the predominating type.

DC 8914, epilepsy, psychomotor. Psychomotor seizures are rated as major seizures "when characterized by automatic states and/or generalized convulsions with unconsciousness," and as minor seizures "when characterized by brief transient episodes of random motor movements, hallucinations, perceptual illusions, abnormalities of thinking, memory or mood, or autonomic disturbances."

You are not rated higher because you carry DC 8910 instead of DC 8911. You are rated on how many major seizures and how many minor seizures you actually have, scored under the shared formula.

What each epilepsy rating level requires

The 10% level does not require any recent seizure at all. A confirmed diagnosis with a history of seizures is enough, and Note (1) sets 10% as the minimum whenever continuous medication is needed to control the epilepsy. A veteran whose seizures are fully controlled on medication still holds 10%, because controlled epilepsy is still epilepsy.

The major-seizure axis and the minor-seizure axis are scored separately. A veteran averaging one major seizure every three months reaches 80% on the major axis. A veteran with more than 10 minor seizures a week also reaches 80%, on the minor axis. You don't add the two together. When both types occur, VA rates the predominating type.

The frequency windows are specific, and they differ at each level. The 100% level looks at the last year and asks for an average of one major seizure a month. The 20% level reaches back two years for a single major seizure. The 40% level wants one in the last six months or two in the last year. The window matters as much as the count, which is exactly why undated seizure reports are so hard to rate. "I have a few seizures a month" cannot be slotted into a level. "Major seizures on January 4, March 19, and June 2, each witnessed by my wife" can be.

Major vs minor seizures: what VA counts

The two definitions drive the whole rating, and they are not interchangeable.

A major seizure, in the words of the regulation, "is characterized by the generalized tonic-clonic convulsion with unconsciousness." This is the seizure most people picture: the body stiffens and jerks, the person loses consciousness and usually has no memory of the event. Because the veteran is unconscious during it, the description of a major seizure almost always has to come from a witness.

A minor seizure "consists of a brief interruption in consciousness or conscious control associated with staring or rhythmic blinking of the eyes or nodding of the head ("pure" petit mal), or sudden jerking movements of the arms, trunk, or head (myoclonic type) or sudden loss of postural control (akinetic type)." Minor seizures are easy to miss and easy to undercount, both by observers and by the veteran, who may not realize an episode occurred.

The distinction is load-bearing because the formula counts the two on different clocks. Major seizures are counted over months and years. Minor seizures are counted per week. A documentation habit that lumps everything together as "seizures" loses the information the rating needs. A good record separates the two, so that each count can be scored against its own level. For psychomotor seizures under DC 8914, the treating neurologist should describe the episodes in the record in the regulation's terms, because that description decides which axis they are scored on.

How to prove epilepsy for a VA claim: physician confirmation and witnesses

This is the most important threshold issue in an epilepsy claim, and it is where many claims stall. 38 CFR § 4.121 (opens in a new tab) sets the rule.

To warrant a rating for epilepsy, the seizures must be witnessed or verified at some time by a physician. As to frequency, competent, consistent lay testimony emphasizing convulsive and immediate post-convulsive characteristics may be accepted. The frequency of seizures should be ascertained under the ordinary conditions of life (while not hospitalized).

The same section says that when there is doubt about the true nature of the attacks, neurological observation in a hospital is necessary. A veteran's own report of seizures, standing alone and without that verification, is not enough to establish a ratable seizure disorder.

The trap is that the most objective-looking test, the EEG, is often normal between seizures. A 2025 multicenter study in Annals of Neurology notes that a single routine EEG has limited diagnostic value and that only a small share of routine EEGs show epileptiform discharges; among 218 patients with suspected epilepsy and a normal first EEG, about 46% were later diagnosed with epilepsy after monitoring (PMID 39817338). So a claim that leans entirely on "my EEG will prove it" can stall when the EEG is clean, and a clean EEG does not disprove a diagnosis built on clinical history and witnessed events.

For frequency, § 4.121 itself accepts witness testimony. A spouse, parent, roommate, or coworker who has watched a seizure and can describe it in plain terms is providing the kind of evidence the regulation names. A lay witness can describe what they saw even though they cannot diagnose epilepsy; Board decisions cite Jandreau v. Nicholson, 492 F.3d 1372 (Fed. Cir. 2007), for that line between describing symptoms and making a diagnosis.

So the proof splits into two parts. First, is there a confirmed diagnosis, with seizures witnessed or verified by a physician at some point? Second, is there ratable frequency evidence? A claim can clear the first and still fail on the second. The 10% level is the floor for a confirmed diagnosis with a history of seizures. Everything above 10% requires dated, countable seizure evidence.

The seizure diary

In epilepsy, the C&P exam can only capture one ordinary day, and on that day there is usually no seizure to observe. The frequency evidence has to come from the longitudinal record, and the best longitudinal record is a seizure diary. A diary the rater can actually use gives each entry the details below.

• The date and time of the seizure.
• Whether it was major (convulsion with loss of consciousness) or minor (brief lapse in awareness or control).
• Who witnessed it, and a short description in that witness's words.
• The recovery afterward: confusion, fatigue, soreness, how long it took to come back to baseline, whether you could work or drive.
• Any injuries, tongue biting, incontinence, or aspiration.
• Whether you were on your prescribed medication and whether anything changed (dose change, missed dose, illness, sleep loss).

The date and the major or minor label let the rater place the episode in a frequency window. The witness description supplies the lay frequency evidence § 4.121 accepts. The recovery account documents the functional cost, which feeds any unemployability or special monthly compensation question. A diary backed by buddy statements is stronger still: a statement from a spouse who has watched many seizures, or a coworker who has called for help during one, corroborates the diary with independent witness evidence.

Is epilepsy service connected? Direct, presumptive and secondary claims

Direct service connection fits when seizures began in service or follow an in-service event, such as a head injury documented in your service records.

The chronic disease presumption is easy to miss. "Epilepsies" are on the chronic disease list in 38 CFR § 3.309(a) (opens in a new tab). Under § 3.307(a), after 90 days or more of qualifying service, epilepsy that became manifest to a degree of 10 percent or more within one year of separation is presumed service connected. Because 10 percent needs only a confirmed diagnosis with a history of seizures, records from that first year after discharge can carry the claim.

Epilepsy secondary to TBI

This is the leading secondary chain, and the regulation does much of the work. Under 38 CFR § 3.310(d) (opens in a new tab), in a veteran with a service-connected TBI, "unprovoked seizures following moderate or severe TBI" are held to be the result of the TBI "in the absence of clear evidence to the contrary." Severity is judged by the injury at the time it happened, not your current function. For example, loss of consciousness for more than 30 minutes, or post-traumatic amnesia for more than a day, places a TBI at least in the moderate range under the § 3.310(d) table. The Board has to address it: in a June 2025 decision (25008291), the Board sent a seizure claim back for a new opinion after a joint motion found it had not addressed whether § 3.310(d)(1)(ii) applied.

After a mild TBI, or when the TBI severity is unclear, § 3.310(d)(2) says the claim is still decided under the ordinary rules. That means a medical opinion that names the mechanism (injured cortex acting as a seizure focus), addresses the time between the injury and the first seizure, and rules out other causes. The medical link is well documented: in a study of 938,890 post-9/11 veterans, moderate or severe TBI and penetrating TBI were each tied to higher odds of epilepsy (PMID 38030395). That is an association, so your opinion still has to tie your seizures to your injury.

Secondary service connection also covers aggravation under § 3.310(b): a seizure disorder worsened by a service-connected condition, meaning it would be less severe but for that condition. An opinion that addresses only causation and skips aggravation is inadequate (El-Amin v. Shinseki, 26 Vet. App. 136 (2013)).

Brain tumor and stroke

Seizures are a frequent consequence of brain tumors (PMID 37699031), and a review of 128 studies put the incidence of post-stroke epilepsy at about 10% (PMID 38008901). When the tumor or the stroke is itself service connected, or secondary to a service-connected condition, the resulting seizure disorder follows the same secondary analysis, with an opinion that explains the mechanism and the time course.

The epilepsy C&P exam

The epilepsy C&P exam follows the DBQ for seizure disorders. Because the examiner usually will not witness a seizure, the exam is largely about capturing history accurately and confirming the diagnosis. A complete exam records the items below.

• The type or types of seizures (major, minor, or both) and how they look.
• The frequency of major seizures over the relevant windows (last six months, last year, last two years) and the frequency of minor seizures per week.
• The date of the most recent seizure of each type.
• Current medication, dosing, and whether seizures are controlled, partially controlled, or uncontrolled.
• The diagnostic basis: neurological findings, EEG results, imaging, and any witnessed events.
• Functional effects, including any restriction on driving, working at heights or with machinery, and the recovery period after a seizure.

When the exam captures dated frequencies for both seizure types and ties them to the formula windows, the rater has what is needed to assign a level above 10%. When the exam records only "occasional seizures" or fails to separate major from minor, the rater cannot map the report onto the formula, and the claim either gets the minimum or comes back for more development. Remand is the most common Board outcome on epilepsy; the Board section below shows why the Board sent epilepsy claims back.

Special monthly compensation and TDIU for epilepsy

Seizures carry a functional cost that the percentage doesn't fully capture. Under 38 CFR § 3.352(a), aid and attendance can rest on an "incapacity, physical or mental, which requires care or assistance on a regular basis to protect the claimant from hazards or dangers incident to his or her daily environment." A veteran who cannot bathe, cook, or be near stairs without risk of injury during a seizure, or who needs someone present when a convulsion strikes, fits that description. The diary entries that note injuries, the need for supervision, and lost capacity to work or drive do double duty here.

Employment gets its own note in § 4.124a: "Rating specialists must bear in mind that the epileptic, although his or her seizures are controlled, may find employment and rehabilitation difficult of attainment due to employer reluctance to the hiring of the epileptic." A seizure disorder that bars driving, or that makes work around machinery or heights unsafe, can support a total rating based on individual unemployability under 38 CFR § 4.16 when the occupational impact is documented, even where the schedular percentage alone would not reach 100%.

Why VA denies epilepsy claims

Across 1,746 decided Board rulings on epilepsy from 2021 to 2026, 19.3% were granted, 28.6% denied and 52.1% remanded. That grant rate is 5.4 percentage points below the 24.7 percent across all decided Board rulings, and remand was the most common outcome, more common than grants and denials combined. When the Board denied epilepsy service connection, it most often found no link between the epilepsy and service; the Board section below shows how often each part of the claim failed and why claims were sent back. Across the epilepsy decisions I review, the same gaps repeat.

No link to service. The seizures began after separation, the service records show no seizure, head injury or other in-service event, and no opinion connects the two. If you have a service-connected TBI, check whether the § 3.310(d) rule applies before arguing anything else.

No physician confirmation. The record describes spells or episodes, but no physician has witnessed or verified a seizure, so § 4.121 is not met.

No dated frequency record. The diagnosis is confirmed, but the file describes seizures only as "occasional," "a few a month," or "well controlled most of the time." None of that maps onto the formula's windows, so the rater defaults to the 10% floor.

Relying on a normal EEG. A single clean EEG between seizures is treated as evidence against epilepsy, even though a routine EEG often misses it.

Witness testimony missing. Section 4.121 expressly accepts lay testimony on frequency, yet many files contain no statement from anyone who has seen a seizure. Without one, a major seizure (during which the veteran is unconscious) has no first-hand description in the record at all.

Major and minor seizures lumped together. The file records "seizures" without separating convulsions from brief lapses. Because the formula counts the two on different clocks, an undifferentiated count cannot be scored on either axis, and VA cannot tell which type predominates.

Secondary opinion left thin. A one-line "related to TBI" with no mechanism, no discussion of timing and no word on aggravation does not carry a secondary claim when the § 3.310(d) rule does not apply.

Questions veterans ask about epilepsy

What is the VA disability rating for epilepsy?

Epilepsy rates 10, 20, 40, 60, 80 or 100 percent under the General Rating Formula for Major and Minor Epileptic Seizures. A confirmed diagnosis with a history of seizures is 10 percent, and averaging at least one major seizure a month over the last year is 100 percent. At the 2026 rates for a veteran alone, that runs from $180.42 to $3,938.58 a month.

Is epilepsy a presumptive condition for veterans?

In one way. Epilepsy is on the chronic disease list in 38 CFR § 3.309(a), so after 90 days or more of qualifying service it is presumed service connected if it reached 10 percent within one year of separation. It is not on the PACT Act or Agent Orange presumptive lists.

Can I get VA disability for seizures after a TBI?

Yes. If your TBI is service connected and was moderate or severe, VA treats unprovoked seizures that follow it as secondary to the TBI unless there is clear evidence to the contrary. After a mild TBI you can still win, but you need a medical opinion linking the seizures to the injury.

Will a normal EEG sink my epilepsy claim?

Not by itself. A single routine EEG often misses epilepsy between seizures, and § 4.121 asks for seizures witnessed or verified at some time by a physician, not for an abnormal EEG.

Does taking seizure medication count toward an epilepsy rating?

Yes. When continuous medication is shown necessary to control epilepsy, the minimum rating is 10 percent, even if the medication keeps you seizure-free.

Is VA changing the epilepsy rating criteria?

Not in a way that changes the percentages so far. VA's November 12, 2024 proposal for neurological conditions and convulsive disorders (89 FR 88917) would add "tonic-clonic" and "absence" to the titles of DCs 8910 and 8911 and leave the seizure formula as it is. As of October 2026 it is still a proposal, not a final rule.

Bottom Line

Epilepsy ratings come down to two questions: is the diagnosis confirmed, and how often do you seize. The diagnostic code (8910, 8911, 8912, 8913, or 8914) tells the VA what kind of seizures you have, but the percentage always comes from the General Rating Formula for Major and Minor Epileptic Seizures, which scores major seizures over months and years and minor seizures per week and, when both types occur, rates the predominating type. The hard part is that the frequency evidence rarely exists in clinical form, because seizures happen when no clinician is watching and an EEG between seizures is often normal. That is why witness testimony and a dated seizure diary, the kind of evidence that is optional in most claims, are close to mandatory here. If your seizures followed a moderate or severe service-connected TBI, the § 3.310(d) rule can supply the link on its own. The Board data is consistent with all of this: 52.1 percent of decided epilepsy rulings were remanded, more than were granted and denied combined. Same condition, different paper trail, different outcome.

Related conditions

Epilepsy connects most directly to TBI, which is the leading antecedent for post-traumatic seizures and the most common secondary pathway under § 3.310. It also overlaps in evidence and presentation with migraines, another neurological condition rated heavily on frequency and on the veteran's own documentation of attacks, and with Parkinson's disease, where neurological findings and functional cost drive the rating. Veterans pursuing a seizure disorder as secondary to a head injury should review the secondary conditions tool and build the nexus opinion around mechanism and time course rather than a single conclusory line.

Methodology and Limitations

• Data source: Rating criteria quoted from 38 CFR § 4.124a, the General Rating Formula for Major and Minor Epileptic Seizures and its notes, applied through DCs 8910 (grand mal), 8911 (petit mal), 8912 (Jacksonian and focal motor or sensory), 8913 (diencephalic), and 8914 (psychomotor), checked against the eCFR text in October 2026. The confirmation requirement and lay frequency evidence from § 4.121. The chronic disease presumption from §§ 3.307(a) and 3.309(a). Secondary service connection, aggravation and the TBI rule from § 3.310(b) and (d). Aid and attendance from § 3.352(a) and unemployability from § 4.16 and the § 4.124a note. The pending neurological proposal from 89 FR 88917 (November 12, 2024). Medical statements from PubMed abstracts (PMIDs 39817338, 38030395, 37699031, 38008901). Board practice examples from 2025 Board decisions 25008291 (the § 3.310(d) remand) and 25000007 (citing Jandreau).
• Sample size: Board figures in this post come from Claim Raven's read of every Board decision from 2021 to 2026 that it holds, 511,036 decisions containing 1,378,030 rulings. That includes 1,746 decided Board rulings on epilepsy (1,892 rulings in all, counting dismissed and withdrawn issues): 52.1% were remanded, 19.3% granted and 28.6% denied. The Board section on this page breaks these down by denial reason, remand reason, outcome after a remand, appeal type, medical opinion, claim theory and era; those figures are computed from the data, not typed here. The data does not break outcomes down by rating level or diagnostic code.
• Classification approach: Diagnostic-code and seizure-type definitions drawn from the regulatory text. Frequency-to-percentage mapping follows the General Rating Formula exactly as written. Secondary analysis follows § 3.310.
• Limitations:
• Compensation amounts reflect the 2026 VA rate tables (effective December 1, 2025) for a single veteran with no dependents and change annually.
• The major-versus-minor classification, especially for psychomotor seizures under DC 8914, is a clinical judgment that should be made by the treating neurologist; the rating depends on it.
• The EEG and TBI findings cited here are study results and associations, not per-case predictions.
• Selection bias: BVA-level patterns reflect cases that appealed. Most epilepsy claims resolve at the regional office level and aren't in any BVA dataset.
• These observations reflect patterns from the regulatory text and BVA decisions. They are not predictions of individual outcomes.