What the panel ordered
Petition for Reconsideration granted; Findings of Fact, Awards & Orders amended to find 51% permanent disability with no apportionment; employer name corrected; attorney's fees amended accordingly; otherwise affirmed.
Applicant sought reconsideration of the Findings of Fact, Awards & Orders issued by the WCJ on March 30, 2026, which found 38% permanent disability after apportionment. The WCJ recommended denial of the petition, but the Appeals Board granted reconsideration and amended the findings.
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 that the medical opinion on apportionment by Dr. Sean Robinson was not substantial evidence due to lack of adequate explanation and reliance on speculation, thus rejecting apportionment and awarding permanent disability without apportionment.
From the decision · page 13(Exhibit CC, Sean Robinson, M.D., March 4, 2025, PDF p. 64, emphasis added.) The statements provided do not explain how the identified factors caused applicant's
The facts that decided it
What the panel treated as outcome-determinative, and which side it favoured.
Dr. Robinson's apportionment opinion was based on speculation and lacked explanation of how nonindustrial factors caused disability.
Favours Applicant prevailed
This undermined the substantiality of the medical evidence supporting apportionment, leading to rejection of apportionment and awarding permanent disability without apportionment.
From the decision · page 13(Exhibit CC, Sean Robinson, M.D., March 4, 2025, PDF p. 64, emphasis added.) The statements provided do not explain how the identified factors caused applicant's
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.
Provided multiple reports and deposition; opined 38% permanent disability with apportionment of 45% to nonindustrial causes; acknowledged speculation in apportionment; opinion rejected for lack of substantial evidence due to inadequate explanation and speculation.
The Appeals Board rejected Dr. Robinson's apportionment opinion because it lacked adequate explanation of how nonindustrial factors caused disability and was based on speculation, which is not substantial evidence.
From the decision · page 13(Exhibit CC, Sean Robinson, M.D., March 4, 2025, PDF p. 64, emphasis added.) The statements provided do not explain how the identified factors caused applicant's
The rules the panel named
Authorities as the decision cited them, with how this panel applied each one.
Labor Code section 4663
A medical opinion concerning apportionment must explain the facts relied on and the reasoning resulting in its conclusions to be substantial evidence.
Applied to reject Dr. Robinson's apportionment opinion for lack of adequate explanation and reliance on speculation.
From the decision · page 10Therefore, a medical opinion concerning apportionment must explain the facts relied on and the reasoning resulting in its conclusions. This is important because it allows the lay trier of fact to evaluate the substantial nature of medical evidence.
Labor Code section 5909
The Appeals Board must act on a petition for reconsideration within 60 days from the date a trial judge transmits a case to the appeals board.
Applied to determine timeliness of petition for reconsideration.
From the decision · page 2(a) A petition for reconsideration is deemed to have been denied by the appeals board unless it is acted upon within 60 days from the date a trial judge transmits a case to the appeals board.
What proof carried it
The evidence the panel weighed, by kind.
Dr. Robinson's apportionment opinion lacked adequate explanation and was based on speculation, undermining its substantiality.
From the decision · page 13(Exhibit CC, Sean Robinson, M.D., March 4, 2025, PDF p. 64, emphasis added.) The statements provided do not explain how the identified factors caused applicant's
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.
- Issues, outcomes and weights were extracted by AI and released only where the source passage checked. Read the official decision before relying on anything here. Not legal advice.
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