Many TBI disputes come down to documentation quality—not just the severity of the injury.
In practice, insurers commonly look for:
- A clear timeline from the accident date to the first medical visit (and follow-ups)
- Consistent reports of symptoms that align with the mechanism of injury
- Evidence of functional limits—how symptoms affected work, driving, concentration, family responsibilities, and daily routines
- Records showing treatment was reasonable and ongoing, not sporadic
If you delayed care because symptoms were “manageable” at first, that doesn’t automatically defeat your claim. But in California, adjusters often scrutinize gaps. The more organized your records and the more clearly clinicians connect symptoms to the incident, the easier it becomes to push back.


