Veterans are often surprised to learn that their migraine rating comes down to a single word in the VA's rating schedule. Understanding "prostrating" and how examiners apply it is the most important thing you can do before your C&P exam.
The VA rates migraine headaches under Diagnostic Code 8100 of 38 CFR Part 4. The rating levels are:
The crucial distinction between rating levels is frequency. But before frequency matters at all, each attack must qualify as "prostrating."
The VA's rating schedule does not define "prostrating" with a clinical checklist, which creates both confusion and opportunity. Courts and VA guidance have interpreted the term to mean an attack severe enough to force the veteran to stop normal activity, lie down, or otherwise be incapacitated during the attack.
In practical terms, a prostrating attack typically involves:
A veteran who pushes through a headache at work with over-the-counter medication is less likely to qualify for a prostrating rating for that episode than one who documents leaving work, lying down, and losing multiple hours of productive activity.
The rating schedule uses the phrase "characteristic prostrating attacks," not "all attacks." This is important. Most veterans with migraine have attacks of varying severity. The question is whether the characteristic (typical) attack is prostrating, not whether every single headache meets that threshold.
During a C&P exam for migraines, the examiner will ask about:
The examiner is building a frequency-and-severity picture. They need enough information to rate you correctly, and they can only work with what you tell them. For detailed preparation guidance, see Migraines C&P exam: what examiners look for.
The difference between a 30% and a 50% migraine rating is the severity and functional impact: the 30% tier is for characteristic prostrating attacks occurring about once a month on average, while the 50% tier requires very frequent, completely prostrating and prolonged attacks that cause severe economic inadaptability. The jump from 30% to 50% is less about pure frequency and more about the functional consequences of the attacks on work and daily life.
To establish the 50% rating:
To establish the 30% rating:
Several patterns lead to under-rating:
Underreporting at the C&P exam. Veterans sometimes describe their average headache rather than their worst ones. Describe both, clearly, and distinguish them.
Failing to connect lost productivity. An examiner can't see your headaches. You have to verbalize what you can't do during an attack, specifically: can't drive, can't read, had to call in sick, had to leave a family event.
Not having a headache diary. Examiners and raters have no obligation to take your word for frequency. A written, contemporaneous log is far more credible than recalled estimates.
Treating "I take Excedrin and push through it" as evidence of non-prostrating attacks. Pushing through is not the legal standard. If you push through at significant personal cost and the attack meets the severity criteria, it may still qualify.
A 0% rating for migraines is not meaningless. It establishes service connection, preserves your ability to claim higher ratings when attacks worsen, and can open the door to secondary claims. However, 0% carries no additional compensation. If your attacks genuinely qualify for 10% or higher, push back on a 0% rating with a Notice of Disagreement.
If you've been denied or under-rated for migraines, Flat Rate Nexus offers physician-signed nexus letters and free claim evaluation tools at flatratenexus.com/migraines.html. Understanding where your claim fell short is the first step to fixing it.
Thinking about your own claim? Every nexus letter we write goes through a full physician record review, cites peer-reviewed research, and is built around the actual evidence in your case.
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