If you’ve suffered a work injury in California, you may be affected by a Permanent Disability rating. The rating is not just a random number, but directly affects the calculation for your workers’ compensation. It affects the amount of money you receive for the foreseeable future.
At Ratto Law Firm, P.C., our California workers’ compensation attorney understand how the math affects your settlement. We work to protect your rights and seek an accurate calculation of your Permanent Disability rating.
What Is a Permanent Disability Rating?
A Permanent Disability rating represents the percentage of impairment you have after reaching Maximum Medical Improvement (MMI). This is the point where your condition has stabilized and is unlikely to improve significantly with further treatment.
The rating reflects:
- Loss of function
- Long-term physical limitations
- Impact on your ability to compete in the open labor market
- Ongoing symptoms such as pain, weakness, or restricted movement
How Doctors Determine Your PD Rating
Your rating starts with a medical evaluation performed by:
- Your Primary Treating Physician
- A Qualified Medical Evaluator
- An Agreed Medical Evaluator if you have an attorney
The doctor assigns a Whole Person Impairment (WPI) percentage based on the AMA Guides, then the rating goes through several adjustments.
The PD rating formula includes:
- Whole Person Impairment (WPI)
- Adjustments for age and occupation
- Apportionment (how much of the disability is work-related)
- Conversion to a final PD percentage using the state rating schedule
This final percentage determines the number of weeks of PD payments and influences the value of any settlement.
How PD Ratings Affect Settlement Types
California workers’ comp settlements come in two forms:
1. Stipulated Award
- You and the insurance company agree on a PD rating.
- You receive biweekly PD payments.
- Future medical care remains open.
A higher PD rating means more weeks of payments and a larger total award.
2. Compromise & Release (C&R)
- You receive a lump-sum settlement.
- Future medical care is closed.
- The settlement amount is heavily influenced by your PD rating and expected future medical costs.
Because PD ratings drive the value of both settlement types, accurately calculating your rating is critical.
Why PD Ratings Are Often Disputed
Insurance companies have a financial incentive to argue for a lower rating. Common areas of dispute include:
- Whether the doctor used the correct AMA Guides chapter
- Whether pain, weakness, or loss of motion was properly measured
- Whether apportionment was applied correctly
- Whether age and occupation adjustments were calculated accurately
Even small errors in the math can reduce your rating, and your settlement, by thousands of dollars.
Factors That Can Increase Your PD Rating
Several elements can push your rating higher:
- Multiple injured body parts
- Chronic pain or complex regional pain syndrome
- Surgery, especially spinal or joint surgery
- Permanent work restrictions
- Psychological effects related to the injury
- Inability to return to your prior job
The more your injury affects your long-term functioning, the higher your rating tends to be.
Why the Math Matters So Much
Permanent Disability ratings are not subjective. They are the result of a structured formula, and every step of that formula affects your final compensation.
A small change in:
- WPI
- Apportionment
- Occupational adjustment
- Age adjustment
can shift your rating enough to meaningfully change your settlement value. Because of this, many injured workers seek legal help to ensure the rating is calculated correctly and reflects the true impact of the injury.
Get the Help You Deserve from a California Workers’ Comp Attorney
If you are dealing with a work-related injury, or believe your Permanent Disability rating is too low, we’re ready to help.
Our team at Ratto Law Firm, P.C. provides you with the advice and representation you need. Contact us today for a consultation.