Car Accident
Car accidents are the most common personal injury claim in California. The at-fault driver is liable under negligence principles, and California's pure comparative fault system from Li v. Ye...
Car Accident guide →Legal Information Notice
This page provides general legal information about traumatic brain injury claims in California. It does not provide legal advice. Consult a licensed California attorney for guidance specific to your situation.
Traumatic Brain Injury Under California Law
Traumatic brain injuries from personal injury accidents are among the most complex and highest-value cases in California civil litigation. TBI cases require neuropsychological evaluation, life care planning, forensic economic expert testimony, and specialized causation analysis. California imposes no damage cap on non-malpractice TBI cases. Even mild TBI can produce significant cognitive and behavioral symptoms that require expert documentation.
California personal injury law provides a robust framework for traumatic brain injury victims. The governing legal standard depends on the type of injury: vehicle accidents proceed under negligence (with Vehicle Code violations establishing negligence per se); premises liability proceeds under the Rowland v. Christian (1968) duty of care; product liability proceeds under Greenman v. Yuba Power Products (1963) strict liability; and medical malpractice proceeds under MICRA's professional negligence standard with its specific damage caps and shorter statute of limitations.
California's pure comparative fault system from Li v. Yellow Cab Co. (1975) allows traumatic brain injury victims to recover damages even if they were partly at fault. Recovery is reduced proportionally by the victim's fault percentage but not eliminated. California imposes no cap on economic or non-economic damages in non-malpractice personal injury cases.
Who Is Liable After a Traumatic Brain Injury
Liability in traumatic brain injury cases depends on the specific facts and the legal theory governing the injury type. For vehicle accidents: the at-fault driver and their employer (if driving for work). For premises liability: the property owner, lessee, or other party who controlled the property. For product liability: the manufacturer, distributor, and retailer in the entire distribution chain. For medical malpractice: the licensed healthcare provider and potentially the healthcare facility. For workplace accidents: the employer's workers' compensation insurer (exclusive remedy against the employer) and third-party defendants whose negligence contributed.
"Within two years: An action for assault, battery, or injury to, or for the death of, an individual caused by the wrongful act or neglect of another."
Damages Available After a Traumatic Brain Injury
California traumatic brain injury victims can recover: all past and future medical expenses (no cap); lost wages and lost earning capacity; property damage; non-economic damages (pain, suffering, emotional distress, disfigurement, loss of enjoyment of life) — uncapped in non-malpractice personal injury cases; and punitive damages under Civil Code Section 3294 when the defendant's conduct constitutes malice, oppression, or fraud. Medical malpractice non-economic damages are capped by MICRA at $470,000 (personal injury) and $650,000 (wrongful death) in 2026.
Statute of Limitations for Traumatic Brain Injury Claims in California
Two years from the date of injury under CCP Section 335.1 for most traumatic brain injury claims. Medical malpractice: one year from discovery or three years from the act (CCP Section 340.5). Government entity claims: six-month administrative claim under Government Code Section 945.4. Minor victims: tolled until age 18 under CCP Section 352. Missing any applicable deadline permanently bars the claim.
Critical Evidence in Traumatic Brain Injury Cases
- Medical records from the date of injury — Create a contemporaneous medical record tying injuries to the incident; seek care the same day if possible
- Incident or police report — Official documentation of the event, the parties, and any witnesses
- Photographs — The scene, injuries, defective condition, or damaged product at the earliest possible opportunity
- Witness information — Names and contact information for all persons who saw the incident
- Insurance information — All potentially applicable policies from all potentially liable parties
- Prior incident records — Prior complaints, citations, inspections, or product recalls that establish the defendant's prior notice of the hazard
- Employment and wage records — Documentation of lost income from the date of injury forward
Frequently Asked Questions — Traumatic Brain Injury
What types of traumatic brain injury can result from a personal injury accident?
TBI is classified by severity: mild TBI (concussion) — temporary loss of consciousness, confusion, memory gaps; moderate TBI — longer loss of consciousness, post-traumatic amnesia, CT scan abnormalities; severe TBI — extended unconsciousness, coma, structural brain damage on imaging. All severity levels can produce long-term cognitive, emotional, and physical symptoms that require expert documentation for a civil claim.
Do I need a neuropsychologist for a California TBI case?
Yes, in most significant TBI cases. A neuropsychological evaluation establishes the cognitive, behavioral, and emotional impact of the brain injury through standardized testing. This testing provides objective evidence of TBI symptoms that may not be visible on standard MRI or CT imaging — particularly for mild-to-moderate TBI. Neuropsychological expert testimony is typically required to establish the extent and permanence of TBI symptoms.
What is a life care plan and why is it important in TBI cases?
A life care plan is a comprehensive expert document projecting the lifetime medical costs of a TBI victim — future physician visits, therapy, medications, rehabilitation, assistive technology, home care, and placement costs if needed. Certified life care planners prepare these plans. A forensic economist then calculates the present value of the projected costs. Together, these experts establish the economic damages in catastrophic TBI cases.
Can California TBI cases be worth millions of dollars?
Yes. Severe TBI cases with permanent cognitive disability require lifetime care that can cost several million dollars when discounted to present value. Economic damages include: lifetime medical care, in-home attendant care, vocational rehabilitation, assistive technology, lost lifetime earnings, and loss of earning capacity. Non-economic damages (pain, suffering, loss of enjoyment of life) are uncapped in California non-malpractice cases and can be substantial in TBI cases.
What if the defendant says my TBI is exaggerated or pre-existing?
Defendants routinely retain neuropsychologists to conduct independent medical examinations (IMEs) and argue that the TBI is exaggerated or caused by pre-existing conditions. California's eggshell plaintiff rule requires the defendant to take the victim as found — including pre-existing vulnerabilities. Consistency of TBI symptoms across multiple medical providers, objective neuroimaging, and neuropsychological testing from the plaintiff's own expert are the primary defenses against these arguments.
How long do I have to file a TBI lawsuit in California?
Two years from the date of injury under CCP Section 335.1. For children, tolled until age 18. For TBI caused by medical malpractice: the MICRA period of one year from discovery or three years from the act. TBI symptoms that develop gradually (chronic traumatic encephalopathy, for example) may invoke the discovery rule — the period runs from when the plaintiff knew or should have known the injury and its cause.
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