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Migraine headaches are rated by how often attacks are prostrating — forcing you to stop and lie down — not by how much they hurt. This guide quotes the actual rating criteria from 38 CFR Part 4 for diagnostic code 8100, explains what the C&P examiner measures, covers the presumptive and secondary routes to service connection, and lists the reasons these claims come back denied — and how each gets fixed.
How the VA rates migraines in 2026 — the exact criteria
These are the criteria a VA rater applies, quoted from the rating schedule (§ 4.124a). Your rating is the highest level whose wording your evidence meets — and evidence that never uses these words tends to be rated at the bottom.
DC 8100 — Migraine
| Rating | Criteria (38 CFR Part 4 wording) |
|---|---|
| 50% | With very frequent completely prostrating and prolonged attacks productive of severe economic inadaptability |
| 30% | With characteristic prostrating attacks occurring on an average once a month over last several months |
| 10% | With characteristic prostrating attacks averaging one in 2 months over last several months |
| 0% | With less frequent attacks |
"Prostrating" is not defined in the schedule; in practice it means an attack that forces you to stop what you are doing and lie down. "Severe economic inadaptability" does not require unemployability (Pierce v. Principi, 18 Vet. App. 440 (2004)).
Honest ceiling: 50% for frequent prostrating attacks affecting work.
What the C&P examiner measures
The headache DBQ asks the frequency of prostrating attacks over the last several months, their duration, and whether they cause severe economic inadaptability — missed work, reduced hours, changed duties. A dated headache log answering exactly those questions is the strongest evidence you can bring.
The questions that get at the rating criteria — answer them for yourself before the exam:
- When one hits, do you have to lie down in a dark room?
- How many a month — and do you lose work days over it?
Service connection: presumptive, direct, or secondary
No presumption for migraines. Direct connection from a documented in-service headache history or head injury, or — very commonly — secondary to PTSD, TBI, tinnitus, cervical spine conditions or medications for a service-connected condition.
Every service-connection claim has three legs: a current diagnosis (the C&P exam can supply it), an in-service event, injury, exposure or an already-connected condition, and a link between the two — which the VA's own examiner addresses at the exam for direct and secondary claims, and which the law supplies for presumptive ones. You do not need a private opinion to file; you need one only if the VA denies for lack of nexus, and a supplemental claim within one year keeps your effective date.
Secondary conditions veterans miss
Conditions that commonly develop because of this one can be service-connected on top of it, each with its own rating:
- MH aggravation from chronic pain
What the medical literature says
Theeler B.J., Erickson J.C., Headache (2012) — Chronic daily headache in U.S. soldiers after concussion
Soldiers with deployment-related concussion show high rates of chronic headache; onset typically within a week of head injury/blast. Why it matters: Migraine secondary to TBI/concussion.
International Classification of Headache Disorders, 3rd ed. (ICHD-3), Cephalalgia (2018) — persistent headache attributed to traumatic injury to the head
Post-traumatic headache is a formally recognized diagnosis in the international classification. Why it matters: When the examiner calls the TBI-headache link speculative.
Why migraines claims get denied — and the fix
- Attacks called "not prostrating" because nobody documented lying down in a dark room — the log and the treating records must use the word.
- Severe economic inadaptability denied without considering missed work, reduced hours or changed duties (Pierce v. Principi).
A denial is a grade on the evidence packet, not a verdict on you. Filed as a supplemental claim within one year, the fix keeps your original effective date.
Filing it right the first time
- Intent to File first. It locks your effective date for a year — back pay runs from that day, not from the day the package is ready.
- File everything at once. Every condition with a real symptom and a plausible route — direct, presumptive, secondary, increase — goes in one claim. The VA's duty to assist schedules the exam and pulls your records; a condition held back "for more evidence" only starts its clock later.
- Your statement in the criteria's words. A Statement in Support of Claim (VA Form 21-4138) that describes your worst days and your typical days using the language in the table above is the evidence the rater reads first.
- Your records. VA records through Blue Button, decision letters and code sheet from VA.gov, and private records from each doctor's office or patient portal — or a signed 21-4142 so the VA pulls them.
- Prepare for the exam. Know what the examiner measures (above) and answer honestly, including the bad days.
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See If You Qualify →Frequently asked questions
What is the VA rating for migraines?
Migraines is rated under diagnostic code 8100 (§ 4.124a) at 0%, 10%, 30%, 50%. The percentage depends on which criteria in the rating schedule your evidence meets — the full table is on this page.
What is the highest VA rating for migraines?
The highest schedular rating available is 50%. Typical grants land around 30%, but every case is decided on its own evidence.
Is migraines a presumptive condition?
No presumption for migraines. Direct connection from a documented in-service headache history or head injury, or — very commonly — secondary to PTSD, TBI, tinnitus, cervical spine conditions or medications for a service-connected condition.
Can migraines be claimed as a secondary condition — or cause one?
Yes. MH aggravation from chronic pain. A secondary condition is rated on top of the primary one, and the VA's own C&P examiner can supply the connecting opinion.
Do I need a nexus letter for migraines?
Not to file. The VA's duty to assist schedules a C&P exam where its own examiner addresses the connection, and presumptive conditions need no opinion at all. A private opinion becomes worth buying only if the VA denies for lack of nexus — a supplemental claim within one year keeps your original effective date.
Rating criteria verified against eCFR (38 CFR Part 4) — last reviewed 2026-09-19. Regulations change; confirm anything decision-critical at ecfr.gov.