Authorities as the decision cited them, with how this panel applied each one.
Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 621 (Appeals Board en banc); Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal.3d 162, 169; Place v. Workmen's Comp. Appeals Bd. (1970) 3 Cal.3d 372, 378
Substantial evidence must support WCAB decisions; medical opinions must be based on reasonable medical probability and adequate examination and history; opinions based on speculation or incorrect legal theories are not substantial evidence.
Applied to evaluate medical opinions and evidence in the case.
From the decision · page 3It is axiomatic that substantial evidence must support the decisions by the Appeals Board.
(Lab. Code, § 5903, 5952(d); Lamb v. Workmen's Comp. Appeals Bd. (1974) 11 Cal.3d 274
[39 Cal.Comp.Cases 310]; Garza v. Workmen's Comp. Appeals Bd. (1970) 3 Cal.3d 312
[35 Cal.Comp.Cases 500]; LeVesque v. Workmen's Comp. Appeals Bd. (1970) 1 Cal.3d 627
[35 Cal.Comp.Cases 16].) To constitute substantial evidence "... a medical opinion must be framed
in terms of reasonable medical probability, it must not be speculative, it must be based on pertinent
facts and on an adequate examination and history, and it must set forth reasoning in support of its
conclusions." (Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 621 (Appeals Board
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]; Place v. Workmen's Comp. Appeals
Bd. (1970) 3 Cal.3d 372, 378 [35 Cal.Comp.Cases 525].)
Department of Corrections and Rehabilitation v. Workers' Comp. Appeals Bd. (Fitzpatrick) (2018) 27 Cal.App.5th 607
Permanent total disability must be determined through impairment ratings by AMA Guides pursuant to Labor Code section 4662; no second independent path to permanent total disability under section 4662(b).
Applied to reject vocational expert opinion as sole basis for permanent total disability.
From the decision · page 3In Department of Corrections and Rehabilitation v. Workers' Comp. Appeals Bd.
(Fitzpatrick) (2018) 27 Cal.App.5th 607 [83 Cal.Comp.Cases 1680], the court concluded that the
issue of whether an applicant is permanently and totally disabled must be determined through
impairment ratings by application of the AMA Guides to the Evaluation of Permanent Impairment
(AMA Guides) pursuant to Labor Code section46602. In addition, a finding under section 4662(b),
"in accordance with the fact," does not provide a second independent path to permanent total
Nunes v. State of California, Dept. of Motor Vehicles (2023) 88 Cal.Comp.Cases 741 (Appeals Board enbanc)
Labor Code section 4663 requires medical apportionment determination; vocational apportionment is impermissible; vocational evidence may address permanent disability issues but cannot substitute for medical apportionment.
Applied to clarify the role of vocational evidence in permanent disability and apportionment determinations.
From the decision · page 4With respect to VE evidence, pursuant to Nunes v. State of California, Dept. of Motor
Vehicles (2023) 88 Cal.Comp.Cases 741 (Appeals Board enbanc) (Nunes I), the Appeals Board held
as follows:
To prove permanent total disability, applicant must show work restrictions with substantial medical evidence, vocational expert evidence that restrictions preclude rehabilitation and open labor market competition, and that restrictions are 100% industrial in cause.
Applied to outline evidentiary requirements for permanent total disability proof.
From the decision · page 5Finally, where applicant seeks to rebut the PDRS and prove permanent total disability, they
must prove the following: