A concussion after a rear-end collision is a mild traumatic brain injury, and the word mild describes how the injury looked on the first day, not how long it will last or how much it will cost you. You do not have to hit your head to sustain one; the whiplash motion of a rear impact is enough. Most people recover in weeks. A meaningful minority have headaches, dizziness, sleep problems, trouble concentrating and mood changes for months, and that is a real claim with real value when it is documented.
What decides a concussion case is the medical record in the first two weeks. CT scans are almost always normal in concussion, and a normal scan is the first thing the insurer will cite. The records that overcome it are a complaint of headache, confusion or nausea in the emergency room note, a diagnosis of concussion by the first physician, and a referral to a neurologist or concussion clinic when symptoms persist. A client who told the ER at Northridge Hospital she felt foggy and was diagnosed with concussion has a case. A client who said nothing about her head for six weeks because the neck hurt more has a case the carrier will call invented.
Can you get a settlement for a concussion from a rear-end accident?
Yes. A concussion is a diagnosed injury, and a persistent one is compensated for medical care, lost wages and the effect on daily life. The value depends on how long symptoms last, whether they were documented by a physician from the beginning, and whether a neurologist or neuropsychologist confirmed them. Policy limits of the driver who hit you, often $30,000, set the practical ceiling.
What a rear-end concussion looks like
A driver stopped at the light at Ventura and Balboa is hit from behind at thirty miles an hour. Her head snaps back and forward. She does not lose consciousness and there is no mark on her head. She feels dazed, has a headache by evening, and is nauseous the next morning. She goes to urgent care, where the note says neck strain and headache. Over the next month she has trouble reading for more than a few minutes, forgets conversations, is irritable, cannot tolerate the brightness of her office lights, and sleeps badly. Her primary care doctor diagnoses post-concussion syndrome and refers her to a neurologist.
That is a typical presentation. Symptoms that persist beyond three months are usually called post-concussion syndrome, and they can affect work, driving, parenting and relationships in ways a sore neck does not. Treatment may include vestibular therapy for dizziness, vision therapy, cognitive therapy, medication for headaches and sleep, and neuropsychological testing to measure the deficits.
The people who get hurt most by the mild label are the ones who try to push through it. A software engineer in Burbank who returns to a full screen day two days after the crash, because the ER said mild, often gets worse, and then has a chart that shows she went back to work, which the carrier reads as proof she was fine. A week of rest and a graduated return, ordered by a doctor and written down, protects both the recovery and the claim.
How a concussion claim is proven in California
Because imaging is usually normal, a concussion case is built on the consistency of the records. The first visit matters most. The diagnosis by a treating physician matters. The referral and the findings of the neurologist matter. Neuropsychological testing, which measures memory, attention and processing speed against norms, gives the claim an objective anchor the carrier cannot wave away. Statements from a spouse, a coworker or a supervisor about the change in the person are admissible and persuasive.
Damages include the paid cost of treatment, wages lost while unable to work or working reduced hours, and non-economic damages for the headaches, the cognitive problems and the disruption to ordinary life. Medical expenses are measured by what was paid, not billed, under the Howell rule. In a serious case with permanent deficits, future care and reduced earning capacity are added.
What the insurance company will argue
The normal CT is first. The response is that CT scans detect bleeding, not concussion, and a normal scan is expected. Second, no loss of consciousness, which is not required for the diagnosis. Third, the low speed of the impact, usually illustrated with photographs of minor bumper damage. Fourth, the absence of a head complaint at the first visit, which is why the first visit matters so much. Fifth, that the symptoms are from stress, anxiety or a pre-existing condition such as migraines. Each of these is an argument, not a defense, and each is answered by the treating physicians’ records and, where needed, neuropsychological testing.
The practical ceiling is the policy. The minimum in California is $30,000 per person under Vehicle Code 16056, and a rear-end driver with a minimum policy caps the recovery there unless you carry underinsured motorist coverage.
What you should do now
Tell the first doctor about every symptom, including the ones that feel vague: fog, forgetfulness, light sensitivity, irritability. Follow up with your primary care doctor within a week if symptoms persist and ask for a referral to a neurologist. Keep a daily log of headaches, sleep and concentration. Do not go back to screens and a full workload before the doctor clears you, because pushing through a concussion prolongs it. Tell your employer in writing why you are working reduced hours. And do not give the insurer a recorded statement while your memory of the crash is affected by the injury itself. The deadline to file is two years under Code of Civil Procedure 335.1.
Questions people ask next
What if the ER did not diagnose a concussion?
A later diagnosis by a primary care doctor or neurologist still supports the claim, especially if the ER note recorded headache, dizziness or confusion. The gap has to be explained, and it usually can be.
Do I need a neuropsychologist?
For symptoms lasting more than a few months, testing is the most persuasive evidence available and is often what moves an insurer off a soft tissue offer.
Can I claim for my child’s concussion in the back seat?
Yes. A child’s claim is handled through a parent and any settlement requires court approval. Children’s concussions deserve the same early documentation.
Vaheh Manoukian handles concussion cases personally, works with neurologists and neuropsychologists to document the injury the scans do not show, and does not let the carrier value a brain injury as a neck strain. Call (818) 818-5031 for a free consultation.
