Once migraines are service connected, the next question is how the VA rates their severity. Migraines are evaluated under 38 CFR 4.124a, Diagnostic Code 8100, at one of four levels: 0, 10, 30, or 50 percent. Unlike many rating criteria, the migraine schedule is built almost entirely around the frequency and character of attacks - especially whether they are “prostrating.”
This guide explains each level in plain English. For how service connection itself works, start with the overview guide.
The four rating levels
Diagnostic Code 8100 rates migraines as follows:
- 0%: with less frequent attacks
- 10%: with characteristic prostrating attacks averaging one in two months over the last several months
- 30%: with characteristic prostrating attacks occurring on an average of once a month over the last several months
- 50%: with very frequent completely prostrating and prolonged attacks productive of severe economic inadaptability
What “prostrating” means
“Prostrating” is not defined in the regulation, but VA adjudicators and the Board of Veterans' Appeals generally understand it to mean an attack severe enough to require the veteran to stop all activity - classically, retreating to a dark, quiet room and lying down until the attack passes.
An ordinary headache that a veteran can work through is not a prostrating attack. The evidence should describe what actually happens during an attack: whether you can keep working, drive, or care for family, or whether you must stop and isolate until it ends.
What “over the last several months” means
The rating levels refer to attack frequency “over the last several months.” The evaluation is meant to reflect the current pattern of the disability, not a single bad week or a period from years ago. This is why recent, consistent documentation - a headache diary plus treatment records - carries more weight than memory alone.
Where veterans start
Every case is different, and there is no obligation at any step. When veterans want to understand what their records actually support, these are the two most common starting points:
- Medical records review
A licensed physician reviews your records for a $250 flat fee and identifies which conditions the available evidence may support. The fee is refunded in full if nothing supportable is identified.
- Nexus letter
When the records support one, a licensed provider writes the medical opinion that addresses the link between your migraines and your service or an already service-connected condition.
What “severe economic inadaptability” means at 50 percent
The 50 percent level adds a requirement beyond frequency: the attacks must be “productive of severe economic inadaptability.” In practice, this means the migraines substantially interfere with the ability to maintain employment - frequent missed work, inability to sustain a work schedule, or documented occupational impact.
Evidence can include employment records showing absences, statements from employers, or a vocational history showing jobs lost or hours reduced because of attacks. Medical evidence describing the expected functional impact of the documented attack pattern also matters.
Can migraines be rated higher than 50 percent?
The schedular criteria stop at 50 percent. Veterans whose service-connected disabilities - migraines alone or in combination with others - prevent them from securing or following substantially gainful employment may be evaluated for total disability based on individual unemployability under 38 CFR 4.16. That is a separate, work-focused analysis, explained in our TDIU guide.
Because ratings combine under the VA's combined ratings table rather than simple addition, it is worth checking how a migraine rating interacts with your other ratings using our VA disability calculator.
Documenting frequency and severity
The difference between 10, 30, and 50 percent is documentation. The evidence that most directly addresses the criteria:
- A contemporaneous headache diary recording date, duration, severity, symptoms, and what you had to stop doing
- Treatment records reporting attack frequency to your providers over time
- Prescription records for abortive or preventive migraine medications, including refill patterns
- Emergency or urgent care visits for severe attacks
- Statements from family members or coworkers who see what attacks do to you
- Employment records showing missed work, when the 50 percent level is at issue
The C&P examination
The VA commonly evaluates migraines with a Headaches Disability Benefits Questionnaire, which asks about diagnosis, frequency of prostrating attacks, duration, functional impact, and occupational effects. The examiner's report is compared against your documented history - inconsistencies between what is reported at the exam and what the records show over time can affect the evaluation.
An accurate, consistent record built over months of treatment is the strongest foundation. Our guide to migraine claim evidence covers how the pieces fit together.
Frequently asked questions
What does “prostrating” mean for a migraine rating?
The VA uses “prostrating” to describe attacks severe enough that the veteran has to stop activity - typically lying down in a dark, quiet room. The frequency and duration of prostrating attacks drive the 10, 30, and 50 percent levels under Diagnostic Code 8100.
What is the maximum VA rating for migraines?
50 percent is the maximum schedular rating. It requires very frequent, completely prostrating and prolonged attacks productive of severe economic inadaptability - meaning the attacks substantially interfere with the ability to work.
Can I get more than 50 percent for migraines?
Not under the schedular criteria for Diagnostic Code 8100. Veterans whose service-connected disabilities prevent substantially gainful employment may be evaluated for total disability based on individual unemployability (TDIU) under 38 CFR 4.16, which is a separate analysis.
How do I document migraine frequency for the VA?
A contemporaneous headache diary recording the date, duration, severity, and functional impact of each attack is strong evidence. Consistent reports in treatment records - including prescriptions for migraine-specific medications and emergency visits - also document frequency over time.


