When Your QME Report Is Unfavorable: What You Can Do

Evaluating the report

The first thing to do with an unfavorable QME report is read it slowly, twice. Most workers — and a fair number of attorneys — react to the conclusion before they read the body. The conclusion is where the QME tells you what they decided. The body is where the QME has to show their work, and the body is where reports fall apart.

Look for four things. First, the AOE/COE finding — did the QME determine the injury arose out of and in the course of employment? An adverse AOE/COE finding is the most consequential part of any report and the hardest to fix. Second, the impairment percentages — what whole-person impairment did the QME assign, and to which body parts? Third, apportionment — what percentage did the QME attribute to non-industrial causes, and is the explanation specific to your medical history? Fourth, the records reviewed — did the QME consider all the relevant treating records, prior imaging, and your job description?

Common defects to flag:

• Missing records (prior MRIs, treatment notes, occupational history) that materially affect the analysis
• Conclusory apportionment — "50% non-industrial" with no medical reasoning attached
• Mathematical errors in the WPI calculation under the AMA Guides
• Ex parte communication with the carrier or defense counsel that was not disclosed
• A history that contradicts what you actually told the QME during the exam
• A diagnosis that ignores findings on imaging or in treating-doctor records

Mark up the report with these defects before you decide what to do next. The path forward depends on what is actually wrong with the document.

Supplemental questions

The most common — and least invasive — way to address a defective QME report is to send supplemental questions. California Labor Code §4061(c) and the panel-QME procedures permit either party to send written supplemental questions to the evaluator after the report issues, asking the QME to clarify, correct, or expand on specific findings^[1].

Effective supplemental questions are narrow and tied to the record. Examples:

• "Doctor, please review the attached January 2024 MRI report, which was not in your record at the time of evaluation. Does this report change your impairment rating? If so, please provide a revised rating."
• "Doctor, your apportionment opinion attributes 40% to pre-existing degeneration. Please identify the specific medical findings supporting that percentage and explain how the pre-existing condition is causing the current disability."
• "Doctor, your report states the worker has 5 degrees of restricted lumbar flexion. The treating physician's report dated April 2024 documents 25 degrees. Please reconcile these findings."

The QME has a defined window — typically 60 days under DWC rules — to respond with a supplemental report. The supplement becomes part of the QME record and either confirms the original findings, corrects them, or, in the best case, materially shifts the rating. Many cases that look terrible on the original report look very different after supplemental questions surface what the QME actually missed. It is also one of the cheapest moves available — you do not need a new evaluation, just a careful letter.

The AME alternative

If your case has not yet gone through the panel-QME process, or if both sides are willing to abandon the panel, the parties may agree to use an Agreed Medical Evaluator (AME) instead. California Labor Code §4062.2 governs medical evaluator selection in represented cases and authorizes mutual agreement on an AME in lieu of the panel process^[2].

The AME is selected jointly. Both sides agree on a single physician, often someone with a strong reputation for fairness and a well-developed practice in workers' comp evaluation. The AME report then becomes — practically speaking — the de facto truth in the case. WCAB judges give heavy weight to AME reports because the agreement to the evaluator presumes the parties trusted that physician's judgment going in.

AMEs make sense when:

• The case involves complex apportionment that requires a thoughtful, well-reasoned analysis
• Multiple body parts are at issue and you want a single coherent rating
• A previous panel QME has been disqualified or has produced an unsatisfactory report
• Both sides want finality — an AME report is harder to litigate around than a panel report

AMEs are not always the right call. If you have a strong case on the panel-QME track and the defense wants to switch to an AME because they think the panel is going against them, that is a signal to stay where you are. The decision to invoke the AME track is strategic and case-specific. A worker without an attorney is generally not going to be in a position to negotiate an AME — the value of representation in this dynamic is hard to overstate. For complex claims, working with experienced counsel on QME selection and the AME decision often determines the outcome.

Challenging the report at the WCAB

A QME report is admissible only if it constitutes "substantial medical evidence." A report that is internally inconsistent, lacks reasoning, or fails to consider material records does not meet the standard, and the WCAB can disregard it.

The WCAB's en banc decision in Escobedo v. Marshalls (2005) 70 Cal. Comp. Cases 604 set the standard for apportionment opinions: the QME must explain the "how and why" — how the non-industrial factor caused the disability and why it accounts for the percentage assigned

^[3]

. A bare statement of percentage, with no medical reasoning, does not satisfy Escobedo.

Practical implications at the WCAB:

• A QME report rejected as not substantial medical evidence cannot be the basis for a finding on the contested issue
• The WCAB can order a replacement evaluation if the existing report is unusable
• The judge can specifically rely on the treating physician's report — or another physician's report — in preference to the defective QME report
• Cross-examining the QME by deposition can expose the defects on the record, often producing concessions that change the rating

The threshold for "substantial medical evidence" is not high — most reports clear it — but apportionment opinions in particular fail with surprising frequency. Labor Code §4663 requires apportionment to be based on causation, not just on identifying a pre-existing condition; the QME has to draw the causal line^[4]. Reports that recite a list of pre-existing conditions without tying them to current disability are vulnerable.

A bad QME report is a draft, not a verdict. The first time I see a number I do not like, my next move is to figure out what the QME did wrong — not to settle.

When a second QME is possible

A second QME — meaning a wholly new evaluator and a fresh report, not a supplemental — is rare. California Labor Code §4062.5 authorizes replacement of an evaluator under specific procedural circumstances, typically involving disqualification^[5].

Grounds for replacement generally require showing:

• Ex parte communication between the QME and one of the parties
• A conflict of interest the QME failed to disclose
• A lack of subject-matter jurisdiction (e.g., a chiropractor evaluating a psychiatric injury)
• Fraud, bias, or material procedural defect in the evaluation process
• The QME's failure to comply with the timeframes in the regulations

A simple "I disagree with the report" is not grounds for replacement. The procedural defect must be specific and documentable. A request for a replacement evaluator is typically filed by petition with the WCAB, and the burden is on the moving party. If granted, a new panel issues and the process restarts. Labor Code §4062 governs medical-legal disputes generally and is the umbrella under which §4062.2 panel selection and §4062.5 replacement operate^[6].

In most cases, the supplemental-questions and challenge-at-the-WCAB pathways address the problem without needing a second QME. But when the procedural defect is serious — a QME who took an ex parte phone call from defense counsel, for example — replacement is the remedy and worth pursuing.

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This guide is general legal information, not legal advice. For advice about your specific situation, contact our office.

References

1. [1]
   Cal. Labor Code §4061 (medical evaluation procedures and supplemental questions) — California Labor Code
2. [2]
   Cal. Labor Code §4062.2 (AME selection in represented cases) — California Labor Code
3. [3]
   Escobedo v. Marshalls (2005) 70 Cal. Comp. Cases 604 (substantial-evidence standard for apportionment) — WCAB en banc
4. [4]
   Cal. Labor Code §4663 (apportionment to causation) — California Labor Code
5. [5]
   Cal. Labor Code §4062.5 (replacement of medical evaluator) — California Labor Code
6. [6]
   Cal. Labor Code §4062 (objections to medical determinations) — California Labor Code