This guide covers how the VA actually rates tmj / jaw under diagnostic code 9905 — 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
Rated on opening measurement and dietary restriction — up to 50% when limited opening forces an altered diet. Bruxism from MH clenching is the classic pathway.
Honest ceiling: 50% when limited opening forces an altered diet.
The evidence that wins
Service connection: Secondary to PTSD/anxiety (clenching, grinding) — literature-supported.
Medical opinion (nexus): Dental/oral surgery note plus the MH anchor.
Filing it right the first time
Most denials on tmj / jaw 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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