Most online calculators treat TBI like a simple formula. Real claims in California are more complicated—especially when the injury symptoms overlap with other common issues (stress, sleep disruption, neck pain, prior head trauma, or workplace strain).
A calculator may not account for:
- California comparative fault arguments (even partial blame can change recovery)
- The difference between an initial concussion diagnosis and later documentation of persistent symptoms
- Whether treatment was delayed because of access barriers (availability of specialists, appointment timing, insurance authorization)
- How long it took to connect your symptoms to the accident in your medical history
In other words: a tool can give a rough starting point, but it can’t reflect the evidence your claim will rely on in negotiation or litigation.


