“Eman really knows his stuff and we were very pleased with our end result.”
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✦ Certified Specialist in Workers’ Compensation Law, certified by the State Bar of California, Board of Legal Specialization ✦
By Eman Yazdchi, Esq. · Certified Specialist in Workers' Compensation Law, State Bar of California Board of Legal Specialization · Cal Bar #285231
Has the same motion at work slowly worn your body down, month after month, with no single accident behind it? You are probably anxious about your job, your bills, and whether the ache will ever let up. First, breathe. You hold real rights here, and opening a claim costs you nothing up front.
When a job grinds your spine, shoulder, knees, or wrists down over time, you still have rights. California owes you full medical care, two-thirds of your wages while you heal, and a cash award for lasting harm. That holds whether you lash containers at the Port of LA, lift patients at Cedars-Sinai, or run a garment machine downtown. You never pay for your own MRI. The insurer does.
Start here today:
Most likely yes. If repeated motion on the job wore your body down, you can get paid medical care, wage checks, and a cash award.
Almost every worker who calls asks the same first question: is this really a case? If the same task, done over and over, broke your body down, the answer is usually yes. It does not matter that you cannot name one bad day. California treats a slow build-up the same as a sudden fall. What matters is reporting it now and seeing a doctor who writes that your job is the cause. You generally have one year from that point to file. We handle everything after that.
Cumulative trauma is among the most common kinds of claim we handle at the Los Angeles WCAB. Repeated lifting, reaching, gripping, and twisting drive the city's biggest jobs, from the San Pedro docks to the floors at Keck Medicine. Depending on the lasting damage, these claims range widely, from a few thousand dollars to six figures for the worst cases. Your claim rests on the same rights every California worker holds, no matter your immigration status.
Cumulative trauma is harm that builds up from repeated motion, with no single accident. California law counts it as a real, claimable work injury.
California recognizes two kinds of job injury. A specific injury happens in one moment: a fall, a bad lift, a slip. A cumulative injury builds up across months or years of the same motion. Think hoisting cargo hooks, lifting patients, scrubbing banquet pans, or feeding fabric through a sewing machine. The rule that treats a build-up as a work injury is Labor Code §3208.1. It asks for repeated job exposure, not one dramatic event.
A build-up claim still needs a starting date, and a separate rule, §5412, sets it. Your date of injury is the day two things meet: you feel the disability, and you know, or should know, work caused it. For most workers that is the first time a doctor links the pain to the job. Until then, the legal clock has not started.
Cumulative trauma shows up wherever the same motion repeats. The injuries we see most often in Los Angeles are:
If your job repeats one of these motions and the body part it stresses now hurts, you may have a cumulative-trauma claim.
Cumulative trauma raises a question a one-day injury never does: which job caused it? Many Los Angeles workers spend years moving between employers, from one hotel to the next, or one job site to another. When your build-up spans several jobs, a separate rule decides which employer and insurer must pay. Often that is the coverage from your last year of the harmful work. This matters because the right insurer must cover your treatment and your disability award. You do not have to chase down old bosses yourself. We pull the work history, name the liable employer, and file the claim where it belongs.
It depends on your lasting damage, your age, your job, and your future care. No one can name a figure up front. A free review gives you an honest read.
Here is the straight answer: nobody can promise a number before they know your case, and anyone who tries is guessing. Your award turns on how much lasting harm the build-up left, scored as a permanent disability rating. It also turns on your age, how hard your job is on your body, and the future care you will need.
Once your condition is as stable as it will get, a doctor scores the lasting damage as a percentage from the AMA Guides. For injuries since 2013, the law adjusts that score, applies a 1.4 multiplier, then weighs it for your age and occupation. That number can move up or down. The final percentage sets how many weeks of payments you receive.
| Cumulative-trauma injury | Typical permanent-disability rating | Approximate value range |
|---|---|---|
| Mild repetitive strain that resolves with care | 0% to 5% | $0 to $7,000 |
| Single-joint CT, such as carpal tunnel or a rotator cuff needing surgery | 8% to 20% | $8,000 to $35,000 |
| Cumulative spine injury, disc disease with possible fusion | 20% to 40% | $25,000 to $90,000 |
| Multi-body-part or severe cumulative trauma | 40% and up | $90,000 to $300,000+ |
These are general California ranges, not a prediction. Your actual award depends on your disability rating, age, occupation, and future medical care. Past results do not guarantee future outcomes.
Our firm has recovered up to $5,000,000 for a catastrophic spinal-cord injury and $1,500,000 for a cervical-spine injury. Past results do not guarantee future outcomes, because every body and every job is different. For an honest read on yours, call (661) 273-1780.
By blaming your age or an old condition instead of your job. This is called apportionment. Their doctor must prove the exact split, not just guess.
On a cumulative-trauma claim, apportionment is the central battle. Because the harm built up slowly, the insurer blames part of it on aging, an old injury, or ordinary wear. They say it is not your job. Every percent they pin on "other causes" is a percent they never have to pay. So this fight is really about your money.
Labor Code §4663(a): "Apportionment of permanent disability shall be based on causation."
The law will not accept a guess. The doctor who rates you must show the how and why. That means how much of your disability is from work, how much from anything else, and the medical reason for the split. A doctor who simply says "half of this is arthritis," with no explanation, has not met the standard. And the employer answers only for the share work actually caused.
A 2005 ruling, Escobedo v. Marshalls, drew the line. The Workers' Compensation Appeals Board, sitting en banc, held an insurer may apportion to an old, painless condition, like quiet disc wear. But it needs real medical evidence showing the how and why. We use that rule against them. We make their doctor defend every point of apportionment, and we bring the panel QME's findings to push back. For an older dock worker or nurse with years of wear, a wrong call here can cost tens of thousands of dollars.
By law, the insurer covers all the care you need from your date of injury: specialists, surgery, therapy, imaging, and medication. There are no copays or deductibles for you. While the build-up keeps you off work, temporary disability pays two-thirds of your average weekly wage, up to the state cap. That wage support runs for up to 104 weeks within a five-year window, not forever. Once your lasting damage is rated, you receive weekly permanent disability payments for the full percentage.
A denial is not the end. It is where the fight begins. You keep protected medical care while they decide, and you can appeal a denied treatment fast.
Once you file the DWC-1, the insurer has 90 days to accept or deny your claim. Miss that window, and the law presumes your injury is covered. While they investigate, they owe up to $10,000 in medical care right away. They cannot freeze your treatment in the meantime.
Say they deny care your doctor ordered, like a carpal-tunnel release or a shoulder repair. You can appeal through Independent Medical Review within 30 days. And if your employer fires you or cuts your hours for filing, that is illegal retaliation. You may win your job back, your lost pay, and a penalty of up to $10,000 on top of your award.
Report the injury within 30 days, and file your claim within one year. For cumulative trauma, the clock starts when a doctor ties the harm to your work.
Two clocks run, and missing either one hands the insurer an opening. Tell your employer within 30 days. File your formal claim within one year of the date of injury. For a build-up injury, §5412 controls when that year even begins. It starts the day you feel the disability and know, or should know, it came from work. That is why the timing of your first honest doctor's visit matters so much.
| What you do | Deadline | Law |
|---|---|---|
| Tell your employer in writing | 30 days from injury | §5400 |
| File your claim | 1 year from injury | §5405 |
| Cumulative-trauma clock starts | When you feel it and know it is work-related | §5412 |
| Insurer must accept or deny | 90 days from filing | §5402 |
| Appeal a denied treatment | 30 days from the denial | §4610.5 |
Not sure where your clock stands? One free call sorts it out: (661) 273-1780.
Everything above rests on these California Labor Code sections. Each link opens the official statute text.
Injured at work? Call (661) 273-1780
Tap to call →It handles a heavy load of build-up claims from port, healthcare, hospitality, and construction workers. Eman Yazdchi appears there often and knows the local doctors and judges.
Los Angeles cumulative-trauma cases are heard at the Workers' Compensation Appeals Board district office on West 4th Street downtown. The district covers downtown, Hollywood, the Eastside, the Westside, and most of the LA basin proper. Bordering districts take the neighboring ZIPs: Long Beach handles South Bay and harbor cases, and Van Nuys covers the San Fernando Valley. Yazdchi Law appears at the Los Angeles, Long Beach, and Van Nuys offices on build-up spine, shoulder, knee, and bilateral-hand claims. Related: Los Angeles shoulder-injury claims.
The city's hardest jobs on the body produce most of the cumulative trauma we see:
LA insurers raise apportionment in nearly every cumulative-trauma case. Build-up workers usually have years of wear on the body part at issue. The fight runs through a Qualified Medical Evaluator chosen from a state panel. When you have a lawyer, each side strikes one of three names, so the doctor you end up with matters a great deal. We know the local QME pool and choose with care. The state lists the QME directory here.
Nurses and aides at Cedars-Sinai, Kaiser, Keck Medicine, and LAC+USC are covered by California's safe patient-handling law. If the hospital kept no trained lift team or proper equipment in place, that failure helps show your work caused the injury. In a strong case it can also support a serious-and-willful penalty, though that carries a high bar. Related: California healthcare-worker injury claims.
Nothing up front, and nothing unless we win. California sets workers' comp fees by the judge, usually 12 to 15 percent of what we recover for you.
You never pay us by the hour, and nothing comes out of pocket to start. In California workers' comp, the judge sets the fee, usually 12 to 15 percent of your recovery, only if we win. No recovery means no fee. That way a garment worker and a longshore foreman get the same quality of help.
Eman Yazdchi is a Certified Specialist in Workers' Compensation Law, certified by the California Board of Legal Specialization, State Bar of California (CA Bar #285231). Fewer than 1% of California attorneys hold this credential. He has represented hundreds of injured California workers and appears regularly at the Los Angeles WCAB. More about Eman Yazdchi. Verify his State Bar profile.
Last reviewed by Eman Yazdchi, Esq., June 2026.
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