Rating criteria (DC 8100)
| Rating | Criteria |
|---|---|
| 0% | Less frequent attacks |
| 10% | Characteristic prostrating attacks averaging one in 2 months over the last several months |
| 30% | Characteristic prostrating attacks occurring on average once a month over the last several months |
| 50% | Very frequent, completely prostrating, and prolonged attacks productive of severe economic inadaptability |
Key terms
- Prostrating: An attack that forces you to stop what you're doing and lie down or rest
- Severe economic inadaptability: Courts have held this does not require being unable to work. It looks at the economic impact of the attacks, such as missed work and reduced productivity.
Evidence that helps
- A headache log: date, duration, symptoms, what you had to stop doing, and medication used
- Treatment records and prescriptions
- Work records of missed days or accommodations
- Statements from family who see the attacks
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Official sources
Rating criteria summarized for general information. Read the full regulation for details. Last reviewed October 2026.