What the panel ordered
Petition for Reconsideration granted; final decision after reconsideration deferred pending further review
Petition for Reconsideration granted; final decision after reconsideration deferred pending further review
What was disputed, and how it came out
Each issue the panel decided, with the reasoning it gave. An outcome is what this panel did on this record — not a rule, and not a prediction.
The Appeals Board found it unclear whether Dr. Klassen's reports constitute substantial evidence and granted reconsideration to further review the merits and the entire record.
From the decision · page 1Applicant seeks reconsideration of the Findings of Fact and Award (F&A) of April 22, 2024, wherein the workers' compensation judge (WCJ) found in relevant part that Dr. Klassen's medical reporting constituted substantial evidence. Applicant contends that Dr. Klassen's reporting did not constitute substantial medical evidence.
The facts that decided it
What the panel treated as outcome-determinative, and which side it favoured.
Dr. Klassen issued seven medical reports and was deposed four times, relied upon by the WCJ as substantial medical evidence for injury findings and apportionment.
Favours Defendant prevailed
The WCJ's reliance on Dr. Klassen's reports was challenged by applicant but initially upheld, making the sufficiency of these reports central to the reconsideration.
From the decision · page 1Applicant seeks reconsideration of the Findings of Fact and Award (F&A) of April 22, 2024, wherein the workers' compensation judge (WCJ) found in relevant part that Dr. Klassen's medical reporting constituted substantial evidence. Applicant contends that Dr. Klassen's reporting did not constitute substantial medical evidence.
Applicant contends Dr. Klassen's reports are confusing, contradictory, and internally inconsistent, challenging their substantiality.
Favours Applicant prevailed
This contention prompted the Petition for Reconsideration and the Board's grant of reconsideration to further review the merits.
From the decision · page 1Applicant seeks reconsideration of the Findings of Fact and Award (F&A) of April 22, 2024, wherein the workers' compensation judge (WCJ) found in relevant part that Dr. Klassen's medical reporting constituted substantial evidence. Applicant contends that Dr. Klassen's reporting did not constitute substantial medical evidence.
What the panel did with the medical opinions
The role the physician served, and the weight the opinion carried. Physicians are named here as the decision names them; we do not score them.
Dr. Klassen examined applicant and issued seven medical reports and was deposed four times. His opinions were found by the WCJ to constitute substantial medical evidence and were relied upon for injury findings, apportionment, permanent disability ratings, and need for further medical treatment in both cases.
From the decision · page 2All parties agreed to use Dr. Michael Klassen as agreed medical evaluator (AME) for both claims. Dr. Klassen examined applicant and issued seven medical reports (Exs. 1-7) and was deposed on four occasions. (Exs. 8-11.)
The rules the panel named
Authorities as the decision cited them, with how this panel applied each one.
E.L. Yeager Construction v. Workers' Comp. Appeals Bd. (Gatten) (2006) 145 Cal.App.4th 922
A medical opinion must be framed in terms of reasonable medical probability, based on an adequate examination and history, not speculative, and must set forth reasoning to support conclusions.
The Board reviewed whether Dr. Klassen's reports met these criteria to constitute substantial evidence.
From the decision · page 4We highlight the following legal principles that may be relevant to our review of the matter. A medical opinion must be framed in terms of reasonable medical probability, it must be based on an adequate examination and history, it must not be speculative, and it must set forth reasoning to support the expert conclusions reached. (E.L. Yeager Construction v. Workers' Comp. Appeals Bd. (Gatten) (2006) 145 Cal.App.4th 922, 928 [71 Cal.Comp.Cases 1687]; Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 620-621 (Appeals Bd. en banc).) "Medical reports and opinions are not substantial evidence if they are known to be erroneous, or if they are based on facts no longer germane, on inadequate medical histories and examinations, or on incorrect legal theories. Medical opinion also fails to support the Board's findings if it is based on surmise, speculation, conjecture or guess." (Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d 162, 169 [36 Cal.Comp.Cases 93].) Medical evidence that industrial causation was reasonably probable, although not certain, constitutes substantial evidence for a finding of injury AOE/COE. (McAllister v. Workmen's Comp. Appeals Bd.
Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d 162
Medical reports and opinions are not substantial evidence if known to be erroneous, based on facts no longer germane, inadequate histories, or incorrect legal theories; opinions based on speculation fail to support findings.
The Board considered whether Dr. Klassen's opinions were speculative or lacked a solid basis.
From the decision · page 4We highlight the following legal principles that may be relevant to our review of the matter. A medical opinion must be framed in terms of reasonable medical probability, it must be based on an adequate examination and history, it must not be speculative, and it must set forth reasoning to support the expert conclusions reached. (E.L. Yeager Construction v. Workers' Comp. Appeals Bd. (Gatten) (2006) 145 Cal.App.4th 922, 928 [71 Cal.Comp.Cases 1687]; Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 620-621 (Appeals Bd. en banc).) "Medical reports and opinions are not substantial evidence if they are known to be erroneous, or if they are based on facts no longer germane, on inadequate medical histories and examinations, or on incorrect legal theories. Medical opinion also fails to support the Board's findings if it is based on surmise, speculation, conjecture or guess." (Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d 162, 169 [36 Cal.Comp.Cases 93].) Medical evidence that industrial causation was reasonably probable, although not certain, constitutes substantial evidence for a finding of injury AOE/COE. (McAllister v. Workmen's Comp. Appeals Bd.
What proof carried it
The evidence the panel weighed, by kind.
Dr. Klassen's medical reports and opinions
From the decision · page 2Klassen constitute substantial medical evidence are relied upon by the court; 2) applicant sustained injury to the neck and bilateral shoulders 3) applicant did not sustain injury to the back or left elbow; 4) the injury caused permanent disability of 20%, after apportionment less credits for sums previously paid, and less attorney fees; 5) Dr. Klassen's apportionment opinions are sound, reasonable, and based on objective medical evidence, and constitute substantial medical evidence; 6) applicant needs further medical treatment to cure or relieve the effects of this injury; and 7) the reasonable value of services rendered by applicant's attorney is 15% of the permanent disability award which shall be commuted from the far end of the award to avoid interruption of applicant's benefits, if necessary. (F&A, pp. 2-3.) The WCJ made the following award in favor of the applicant against defendant as follows: 1) applicant awarded permanent disability per finding number 4, less amounts previously paid, if any; 2) apportionment is established as set forth in Finding of Fact number 5; 3) applicant is need of further medical treatment; and 4) applicant's attorney is entitled to 15% attorney fees. (F&A, p. 3.)
The same issues, filtered across the whole corpus — or paste your own facts and let the search rank by factor match.
About this page
- A published decision of the California Workers' Compensation Appeals Board, taken apart by what it turned on. The Board publishes the decision itself; this page adds the extraction and quotes the passage behind every claim.
- The injured worker is not named here, and the case caption is not printed. Physicians appear as the decision names them, because a medical opinion is an act in a public proceeding.
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