How is a permanent disability rating calculated in California?

After you reach Maximum Medical Improvement (MMI), a Qualified Medical Evaluator assigns a Whole Person Impairment (WPI) percentage, which is then adjusted under California's Permanent Disability Rating Schedule (PDRS) for age, occupation, and apportionment.

What happens if my permanent disability rating is 70% or higher?

Ratings of 70% or higher can trigger a life pension in addition to scheduled permanent disability payments.

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Understanding Your PD Rating: California uses a formula involving Whole Person Impairment (WPI), the Permanent Disability Rating Schedule (PDRS), and adjustments for age and occupation to calculate your rating.

Permanent Disability Rating

Insurance companies frequently dispute PD ratings by using their own doctors' lower impairment estimates — an independent medical evaluation can make a significant difference in your final rating.

What You May Be Entitled To: Weekly PD payments based on your rating percentage, and in select cases, a lifetime pension for the most severe injuries.

When a workplace injury causes lasting impairment, California assigns a permanent disability (PD) rating that directly affects the compensation you're entitled to — and getting that rating right matters.