Permanent Disability Is Evaluated After the Condition Stabilizes
A permanent disability case usually begins with a medical conclusion: the worker’s condition has become permanent and stationary (P&S), also called maximum medical improvement (MMI).
P&S/MMI does not necessarily mean the worker feels normal or no longer needs care. It means the condition has stabilized enough for the doctor to evaluate lasting impairment and future medical needs.
A treating physician, QME or AME may issue the report that addresses impairment. The quality and completeness of that report can affect the rating and later settlement discussions.
If you are still temporarily unable to work and the condition has not stabilized, see our Temporary Disability Benefits page.
A Doctor’s Impairment Percentage Is Not Always the Final PD Rating
The date of injury also matters because it determines the applicable benefit rates and rating rules.
Workers should receive a copy of the medical report and review whether it correctly identifies the injured body parts, history, objective findings, restrictions, impairment and causation. If the report is incomplete or contains a significant factual error, waiting until settlement discussions to raise it can make the dispute harder to untangle.
Partial and Total Permanent Disability
Most permanent disability awards are partial. A permanent partial disability rating reflects lasting impairment below 100 percent and is paid for a statutorily determined number of weeks based on the rating and date of injury.
A 100 percent permanent disability rating is permanent total disability. California DWC states that permanent total disability benefits are paid for life. Those cases are uncommon and require strong medical and legal support.
Do not equate “I cannot return to my old job” with a 100 percent PD rating. Work capacity, medical impairment and the legal rating are related but not identical questions.
For severe injuries involving total-disability issues, the site’s existing Total Disability Lawyers page provides the related service path.
What Medical Issues Commonly Affect the Rating?
Permanent disability disputes can involve:
- whether the condition is truly P&S/MMI;
- whether every accepted body part was evaluated;
- the whole-person impairment assigned by the physician;
- work restrictions and functional limitations;
- whether a condition was caused by work;
- apportionment to other causes of permanent disability;
- whether the medical report is substantial enough to support a rating; and
- whether a QME or AME is needed to resolve a disagreement.
If a QME process is already underway, see our Qualified Medical Evaluations page.
When Do Permanent Disability Payments Begin?
California DWC says PD benefits are normally paid when temporary disability ends and the doctor indicates there are permanent effects from the injury. Subject to statutory exceptions, the claims administrator generally must begin PD payments within 14 days after TD ends and then pay every two weeks while a reasonable estimate is being advanced.
DWC also explains that special timing rules apply when the employer offers qualifying work at specified wage levels. This is one reason return-to-work documents should be reviewed alongside benefit notices rather than in isolation.
Keep every PD notice. It should explain how payments were determined, when they will be paid, why they are delayed or changed, and why they are ending.
Permanent Disability and Future Medical Care Are Separate Questions
A PD award compensates for permanent impairment. Future medical treatment is a separate part of the workers’ compensation case.
That distinction becomes important when evaluating how to resolve the claim. DWC describes two common settlement forms:
- Stipulations with Request for Award: typically provide an agreed disability award and preserve future medical treatment for the accepted injury, subject to the workers’ compensation system; and
- Compromise and Release (C&R): generally resolves specified claim rights for a lump sum, often including a negotiated value for future medical issues being settled.
A worker should understand what is being closed before treating a lump-sum number as the only issue. For a page focused specifically on the medical component of settlement, see our Future Medical Buyout page.
What Happens If You Disagree With the Rating?
The route depends on how the rating was created and whether the worker is represented.
California’s Disability Evaluation Unit (DEU) issues formal, consultative and summary ratings in different settings. DWC provides procedures for reconsideration of certain summary ratings, while represented cases can bring rating disputes before a workers’ compensation judge.
The correct response may require reviewing both the underlying medical report and the rating calculation. A mathematical challenge to a rating is different from a medical dispute over impairment or apportionment.
Documents to Review Before Discussing Settlement
Before evaluating a permanent disability resolution, assemble:
- the P&S/MMI report;
- all QME or AME reports;
- the permanent disability rating or DEU rating, if issued;
- temporary disability payment history;
- permanent disability notices and payment history;
- current work restrictions;
- return-to-work or modified-duty offers;
- future medical recommendations;
- job-displacement voucher documents, if any; and
- any proposed Stipulations or C&R settlement papers.
This lets the disability number, medical rights and return-to-work position be evaluated together.
Permanent Disability Does Not Automatically Mean You Cannot Work
California DWC specifically notes that a worker can receive PD benefits even if able to return to work. The purpose is to compensate for legally recognized permanent impairment, not simply to replace wages during a period off work.
A worker may return to the same job, return with restrictions, move to modified work, or be unable to return to the old occupation. Those facts can affect other parts of the claim, including return-to-work rights and supplemental job displacement benefits.
Frequently asked questions
What is the difference between P&S and MMI?
In California workers’ compensation practice, the terms are commonly used to describe the point when the condition has stabilized and is not expected to improve substantially with further treatment. That is when permanent impairment can be evaluated.
Can I receive PD even if I went back to work?
Yes. DWC states that a worker with permanent disability can be entitled to PD benefits even after returning to work, although payment timing rules can depend on the work offered and wages.
Is my doctor’s impairment number the same as my final disability rating?
Not necessarily. The impairment percentage is part of the rating process; statutory rating adjustments and other factors are then applied.
Will PD cover all of my future wage loss?
No. DWC expressly states that PD benefits are limited and may not cover all income lost because of the injury.
Is Social Security Disability the same as workers’ compensation PD?
No. They are separate benefit systems with different eligibility rules. This page addresses California workers’ compensation permanent disability, not federal Social Security disability benefits.
Local Rating and DWC Resources
The DWC Van Nuys district office at 6150 Van Nuys Boulevard, Suite 105 includes a Disability Evaluation Unit as well as Information & Assistance services. The DEU evaluates medical descriptions of impairment and prepares disability ratings used in workers’ compensation cases.
Hussain & Gutierrez is located nearby at 6316 Van Nuys Boulevard.
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