This guide covers how the VA actually rates fibromyalgia / gulf war under diagnostic code 5025 / 6354 / 8850 — the criteria the rater applies, the evidence that carries weight, and the related conditions veterans most often leave unclaimed. It's the same playbook our own case managers work from.
How the VA rates it
Fibromyalgia: 40% = widespread pain that is constant or nearly so and refractory to therapy · 20% = episodic, present more than a third of the time · 10% = controlled by continuous medication. Chronic fatigue (6354) and undiagnosed multisymptom illness rate separately.
Honest ceiling: 40% — constant widespread pain refractory to therapy.
The evidence that wins
Service connection: SOUTHWEST ASIA SERVICE (Gulf War, Iraq, Saudi, Kuwait) = PRESUMPTIVE — no diagnosis link needed for qualifying chronic multisymptom illness.
Medical opinion (nexus): Not needed if Gulf-presumptive — check DEPLOYMENTS before anything else.
Filing it right the first time
Most denials on fibromyalgia / gulf war claims trace to the same failures: the evidence never addressed the actual rating criteria, the connection to service was asserted instead of supported, or the C&P exam went sideways because nobody prepared for it. A complete file — records, statements written to the criteria above, and honest exam preparation — is the difference.
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