Does Workers’ Comp in California Cover Pre-Existing Injuries?

If you have a pre-existing medical condition, you might wonder whether you can still file a workers’ compensation claim in California. The short answer is yes—if your job aggravated or worsened the condition, you may be entitled to benefits.

California workers’ comp law protects employees whose work-related activities make an existing health issue worse. This is especially common in cases involving back injuries, joint problems, or repetitive stress.

What Counts as a Pre-Existing Condition?

A pre-existing condition could be:

– An old injury from a prior job

– A chronic issue like arthritis

– A previous surgery or illness

What matters is whether your current job duties caused the condition to flare up, become more painful, or lead to new limitations.

What You’ll Need to Prove

To qualify for workers’ comp, your doctor must show that your work activities were a contributing factor to the worsening of your condition. For example, lifting heavy boxes could aggravate an old back injury, or typing all day could worsen carpal tunnel syndrome.

You’re Still Entitled to Benefits

Even if your condition wasn’t originally caused by work, you may still receive:

– Medical treatment

– Temporary or permanent disability payments

– Job retraining, in some cases

However, the insurance company may argue that your injury is entirely due to your prior condition and not work-related. That’s where strong medical documentation—and legal guidance—comes in.

Independent Medical Exams (IMEs)

In many cases, the insurer will request an independent medical exam (IME) to evaluate your condition. This doctor may try to minimize your work’s impact on your injury, so it’s critical to prepare and understand your rights during the exam.

Don’t Let a Pre-Existing Condition Stop You

Insurance companies often deny claims involving pre-existing conditions. But the law is clear: if your job made the problem worse, you may be eligible for benefits.Thomas F. Martin, PLC has helped many injured workers in California get benefits—even with pre-existing issues. Call (714) 547-5025 for a free 30-minute case evaluation to discuss your case.