The current schedule provides four levels for migraine based on attack frequency, prostrating character, duration, and economic impact.
Plain-language summaries explain the text; they do not decide whether any level applies.
With very frequent completely prostrating and prolonged attacks productive of severe economic inadaptabilityPlain-language summary
The highest listed level addresses very frequent, fully prostrating, prolonged attacks with severe work or economic impact.
With characteristic prostrating attacks occurring on an average once a month over last several monthsPlain-language summary
Characteristic prostrating attacks average about once a month over the last several months.
With characteristic prostrating attacks averaging one in 2 months over last several monthsPlain-language summary
Characteristic prostrating attacks average about once every two months over the last several months.
With less frequent attacksPlain-language summary
Attacks occur less frequently than the compensable levels listed above.
38 CFR § 4.124a, DC 8100 · Effective Jun 9, 1953 · Reviewed Jul 24, 2026