{"page":"https://casescribe.ai/explorer/secondary/to/tbi","generated_at":"2026-10-03T18:33:51.844Z","data_as_of":{"decisions":944125,"first_year":2017,"last_year":2026,"latest_decision":"2026-04-30","cfr":"2026-10-01","m21":"2026-09-29"},"about":{"publisher":"CaseScribe AI (VA Law Explorer)","source":"Public Board of Veterans' Appeals decisions (appeals of VA decisions, not VA's first decisions), M21-1 Adjudication Procedures Manual, 38 CFR Parts 3 and 4.","method":"Outcomes are issue-level: each condition the Board decided in a decision counts once. Decision data is extracted by AI and can contain errors. Rates describe past appeals and do not predict any claim.","disclaimer":"For research only. CaseScribe AI is not a law firm and this is not legal advice. Verify figures against the source decisions and regulations.","attribution":"Cite as: VA Law Explorer, CaseScribe AI, with the page URL."},"data":{"disability":"TBI","conditions_claimed_secondary_to_it":[{"claim":"Migraine secondary to TBI","decisions":481,"granted_pct":35.8,"page":"https://casescribe.ai/explorer/secondary/migraine-secondary-to-tbi","json":"https://casescribe.ai/explorer/data/secondary/migraine-secondary-to-tbi.json"}],"it_claimed_secondary_to_other_conditions":[],"how_va_rates":null}}