Permanent disability is a legal classification in California workers' compensation that describes an injury or illness that causes lasting loss of earning power, even after medical treatment ends.

In California, permanent disability does not mean you cannot work at all. It means the state's Division of Workers' Compensation has determined that your work injury has caused permanent damage — reduced strength, range of motion, scarring, chronic pain, or other lasting effects — that will lower your wages or job options for the rest of your life, compared to what you could have earned before the injury.

The state assigns a permanent disability rating, usually expressed as a percentage. That rating determines how much you receive in a one-time lump-sum payment or structured settlement. The rating is based on medical evidence, your age, your occupation, and the specific body part injured — not on whether you are currently working or whether you have found a new job.

Permanent disability in California's workers' compensation system is separate from Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI). You can receive a permanent disability award from California workers' comp and still work, or work part-time, or later be found not disabled under Social Security rules. The programs use different definitions and different standards of proof.

Key Takeaways

  • Permanent disability is awarded when a work injury causes lasting loss of earning power, and the rating is based on medical evidence and your job, not on current employment status.
  • California uses a Permanent Disability Rating Schedule that assigns a percentage to each type of injury; the percentage determines your payment amount.
  • You must have a final diagnosis and have reached maximum medical improvement — the point at which further treatment will not improve your condition — before a permanent disability rating can be issued.
  • Permanent disability payments are separate from temporary disability benefits you may have received while healing, and they do not affect your right to ongoing medical treatment for the injury.
  • A permanent disability rating from California workers' compensation does not automatically mean you may have access to for SSDI or SSI, which use their own medical and work-capacity standards.

How California Calculates Permanent Disability Ratings

California uses the Permanent Disability Rating Schedule, a detailed table maintained by the state that assigns a percentage to nearly every type of work injury. The schedule is updated every few years; the most recent version took effect in 2005 and was last amended in 2023. A doctor or medical evaluator examines you, documents your condition, and assigns a rating based on the body part injured and the severity of the damage.

The rating itself is not the payment amount. Instead, the rating percentage is multiplied by your average weekly wage at the time of injury and by a statutory factor that depends on your age. A 25-year-old with a 20 percent permanent disability rating will receive a larger payment than a 60-year-old with the same rating, because the younger worker has more years of lost earning power ahead. The calculation also accounts for whether you can return to your original job or must retrain for different work.

If you disagree with the rating a doctor assigns, you have the right to request an independent medical examination (IME) by a different physician. If the two doctors' ratings differ by more than 5 percent, the case may go to a hearing before a workers' compensation judge, who can adopt one rating, the other, or order a third medical opinion.

Maximum Medical Improvement and When a Rating Is Issued

A permanent disability rating cannot be issued until you have reached maximum medical improvement (MMI) — the point at which your condition has stabilized and further medical treatment is unlikely to produce significant improvement. MMI is not the same as being "healed" or "cured." You may still have pain, limitations, or need ongoing treatment. MMI straightforward means your condition is no longer expected to change substantially.

Your treating physician or a medical evaluator determines when you have reached MMI. In some cases this happens within weeks; in others it takes months or years. Once MMI is declared, you receive a final diagnosis and a permanent disability rating. If your condition worsens later — for example, arthritis develops in an injured joint — you may be able to reopen your case and request a new rating, but this requires medical evidence that the worsening is directly related to the original work injury.

While you are waiting to reach MMI, you may be receiving temporary disability benefits — weekly payments that replace lost wages during recovery. Once a permanent disability rating is issued, temporary benefits stop and you receive the permanent disability payment instead. You do not receive both.

Permanent Disability Payments and Ongoing Medical Care

A permanent disability award is a one-time payment (or sometimes a structured settlement paid over time) that compensates you for the lasting loss of earning power caused by the injury. This payment is separate from your right to ongoing medical treatment. Even after you receive your permanent disability award, California law requires that your employer's workers' compensation insurance continue to pay for medical care related to your injury — doctor visits, physical therapy, medications, surgery if needed — for as long as the treatment is reasonable and necessary.

This means you do not "use up" your medical benefits by accepting a permanent disability payment. The two are independent. If your injury flares up years later, or if you develop a related condition like arthritis, you can still file a claim for additional medical treatment under the original injury case.

Permanent disability payments are also not reduced or affected by the fact that you have returned to work, found a new job, or are earning the same or more than you did before the injury. The payment is based on the medical reality of the injury and the loss of earning power it caused, not on your actual current earnings.

Permanent Disability vs. Social Security Disability

California permanent disability and federal Social Security Disability Insurance (SSDI) are two separate programs with different rules, different medical standards, and different payment amounts. You can receive one, both, or neither.

A California permanent disability rating is based on the specific injury, your age, and your job at the time of injury. SSDI is based on whether you cannot engage in substantial gainful activity due to a medical condition expected to last at least 12 months or result in death. SSDI does not care what job you had or how old you were when you became disabled. A person with a 50 percent permanent disability rating from a work injury might not meet SSDI's definition of disability, and vice versa.

If you receive both, the payments do not offset each other. However, if you receive workers' compensation permanent disability payments and later explore for SSDI, Social Security will count those workers' comp payments as income when calculating your SSDI benefit amount — meaning your SSDI payment may be reduced. This is called the workers' compensation offset. You should discuss this possibility with a Social Security representative or attorney before accepting a permanent disability settlement.

Reopening a Permanent Disability Case

In California, a permanent disability case can be reopened within five years of the date of injury if there is new medical evidence that your condition has worsened due to the original work injury. "Worsening" means your condition has objectively deteriorated — not straightforward that you are having a bad week or that your pain level fluctuates. The worsening must be documented by medical examination and must be causally related to the original injury.

If your case is reopened, you can request a new permanent disability rating. If the new rating is higher than the original, you receive an additional payment equal to the difference. If it is lower or the same, you receive nothing additional. After five years from the date of injury, a case can still be reopened, but only if you can show that the worsening was not reasonably foreseeable at the time of the original rating — a much higher legal standard.

Reopening requires filing a formal request with the workers' compensation appeals board and usually involves another medical examination. An attorney or workers' compensation representative can help you determine whether reopening is worth pursuing.

Frequently Asked Questions

Does a permanent disability rating mean I cannot work?

No. Permanent disability describes the lasting loss of earning power caused by the injury, not your current ability to work. Many people with permanent disability ratings continue working in their original job, switch to different work, or work part-time. The rating is based on medical evidence of the injury's effects, not on whether you are employed.

Can I appeal a permanent disability rating I think is too low?

Yes. You can request an independent medical examination by a different doctor. If that doctor's rating differs from the first by more than 5 percent, you can request a hearing before a workers' compensation judge, who will decide which rating to adopt or may order a third opinion. You have the right to be represented by an attorney at the hearing.

What happens to my permanent disability payment if I get a new job that pays more?

Your payment amount does not change. The permanent disability award is based on the medical injury and your age, not on your actual current earnings. If you earn more in a new job, your workers' compensation payment stays the same.

If I receive a permanent disability award, do I still get medical treatment for the injury?

Yes. The permanent disability payment and your right to ongoing medical care are separate. Your employer's workers' compensation insurance must continue to pay for reasonable and necessary medical treatment related to the injury for as long as you need it, even after you receive the permanent disability award.

Will a permanent disability rating from California affect my Social Security Disability process?

A permanent disability rating does not automatically may have access to you for SSDI or SSI, because the programs use different definitions of disability. However, if you receive both, Social Security will count your workers' compensation payments as income and may reduce your SSDI benefit. Discuss this with Social Security or an attorney before accepting a settlement.