Migraines: VA Rating Criteria

Plain-language guide

What this rating actually turns on

Diagnostic Code 8100 doesn’t rate how bad your headaches hurt. It rates two things: how often your attacks are prostrating, and at the top tier, whether they produce severe economic inadaptability. The schedule’s exact triggers are frequency averages “over [the] last several months” — one prostrating attack every two months, one a month, and “very frequent completely prostrating and prolonged attacks” (38 CFR 4.124a). The CFR never defines “prostrating,” but VA’s adjudication manual does: “causing extreme exhaustion, powerlessness, debilitation or incapacitation with substantial inability to engage in ordinary activities” — and “completely prostrating” as “extreme exhaustion or powerlessness with essentially total inability to engage in ordinary activities” (M21-1, Part V, Subpart iii, Chapter 12, Section A, quoted in this Board of Veterans’ Appeals decision). In plain terms: a headache you push through at work is not prostrating; a headache that puts you in a dark room is.

The 50% tier’s “severe economic inadaptability” does not mean unemployable. The M21-1 defines it as “a degree of substantial work impairment,” including use of sick leave or unpaid absence, and the Court of Appeals for Veterans Claims held the criterion is met if attacks are capable of producing it (Pierce v. Principi, 18 Vet. App. 440 (2004), both cited in the same Board decision). The manual also pegs “very frequent” as attacks averaging less than one month apart.

What the C&P exam measures

The examiner completes the Headaches (Including Migraine Headaches) DBQ. It records symptoms (nausea, light/sound sensitivity, vision changes), typical duration, and then the questions that decide the rating: characteristic prostrating attacks, with frequency checkboxes (less frequent / once in 2 months / once a month / more than once a month); the same frequency scale for completely prostrating attacks; and impact on ability to work. The form itself notes diagnostic testing is not required for the exam. Those checkboxes map almost one-to-one onto the 8100 tiers, so the exam largely turns on the frequency history you report.

What to have in your file

• A headache log: date, duration, what you could not do (left work, lay down, slept), medication taken. The M21-1 recognizes that your own testimony about symptoms and limitations can establish prostration (Board decision quoting M21-1 V.iii.12.A.3).
• Treatment records showing prescriptions, ER or urgent-care visits, and reported frequency.
• Work evidence for the 50% tier: sick-leave records, attendance records, employer statements showing missed or shortened workdays.

Common mistakes

• Reporting raw headache count instead of prostrating attack count. The schedule rates only attacks meeting that threshold (38 CFR 4.124a).
• Minimizing at the exam. The frequency boxes the examiner checks track the rating tiers directly.
• Assuming 50% requires being unable to work. It requires substantial work impairment, not unemployability (Board decision).
• Gaps in treatment records during the “last several months” window the schedule measures.

Worth knowing

50% is the highest rating DC 8100 offers (38 CFR 4.124a). The Headaches DBQ is a public form your own provider can complete. Migraines often combine with other ratings — run the combined-rating calculator to see what a 30% or 50% migraine rating actually changes. If you want help with the claim, use a VA-accredited representative or Veterans Service Organization — their claim-filing help is free.

Next steps

• Combine this rating with your others — VA math doesn't add ratings.
• How long are claims taking right now? Weekly VBA data.
• Browse other condition rating criteria.