Workers' Compensation for a Head Injury on the Job

Attorney Answer

Report it to your employer in writing now, and get examined — a head injury is the kind that can look like nothing on the day and matter a great deal a week later. California's workers' compensation system covers an injury that happens on the job whether or not anyone was careless, including you. So the question is not who is to blame. It is whether the claim gets opened, and whether what happened to you is documented while the memory and the evidence are fresh.

Cal. Lab. Code § 3602(a) makes workers' compensation the exclusive remedy against your employer for a work injury, subject to narrow exceptions. That cuts both ways. In your favor: you do not have to prove your employer did anything wrong, which is a far lower bar than an ordinary negligence case. Against you: for the injury itself you generally cannot sue your employer instead, and what you receive is what the system provides — medical treatment for the injury and wage replacement while you cannot work.

There is one exception worth checking early. If someone other than your employer caused the injury — a contractor working on the site, a delivery driver, another motorist, a defective piece of equipment or a property owner responsible for where you were — a claim against that person or company sits outside the compensation system and can be pursued alongside the compensation claim. With a head injury, what you struck and who owned or maintained it decides whether that second route exists, which is why it is worth writing down now.

The practical risk with a head injury is delay. Symptoms that arrive days later — headaches, disturbed sleep, trouble concentrating, irritability, sensitivity to light or noise — are far easier to connect to work if the injury was reported and examined on the day it happened than if the first record is created weeks afterward.

What you can do

1. Tell your employer in writing today — the written notice of injury described in Cal. Lab. Code § 5400. A text or an email is enough. Give the date, the time, where you were, what you struck and what you felt, and keep a copy for yourself.

2. Ask your employer in writing for a workers' compensation claim form, and file it. That form, not a verbal mention to a supervisor, is what opens the claim, and Cal. Lab. Code § 5401(a) puts the obligation to provide it on your employer.

3. Get medical attention and tell the provider it happened at work. Ask for a written work status report at each visit and give a copy to your employer the same day.

4. Write down your symptoms as they change, with dates. Delayed head-injury symptoms are common, and undocumented ones are hard to prove later.

5. Note anything involved that did not belong to your employer — equipment, a vehicle, another company's crew, someone else's premises — and tell an attorney about it. That is where a second claim, if there is one, would come from.

6. If your employer will not give you the claim form, or the claim is denied, contact the state's Division of Workers' Compensation information and assistance service. It is free and independent of the insurer.

Most lawyers offer a brief initial call at no cost, and a few minutes on your specific facts is worth more than any general guidance, including this page.

⏱ Time limits apply. A workers' compensation claim carries deadlines fixed by statute that can run from the date of injury or from the date you knew or should have known the injury was work-related. If someone other than your employer was responsible, that separate claim is an injury claim and runs on the two years given by Cal. Code Civ. Proc. § 335.1. Which periods apply to you, and when each one started, depends on your facts — this page will not compute a date. Have a local workers' compensation attorney check yours, and do it before the delayed symptoms decide the question for you.