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California Labor Code Section 4663

Legal Research Home > California Laws > Labor Code > California Labor Code Section 4663

(a) Apportionment of permanent disability shall be based on
causation.
   (b) Any physician who prepares a report addressing the issue of
permanent disability due to a claimed industrial injury shall in that
report address the issue of causation of the permanent disability.
   (c) In order for a physician's report to be considered complete on
the issue of permanent disability, the report must include an
apportionment determination. A physician shall make an apportionment
determination by finding what approximate percentage of the permanent
disability was caused by the direct result of injury arising out of
and occurring in the course of employment and what approximate
percentage of the permanent disability was caused by other factors
both before and subsequent to the industrial injury, including prior
industrial injuries. If the physician is unable to include an
apportionment determination in his or her report, the physician shall
state the specific reasons why the physician could not make a
determination of the effect of that prior condition on the permanent
disability arising from the injury. The physician shall then consult
with other physicians or refer the employee to another physician from
whom the employee is authorized to seek treatment or evaluation in
accordance with this division in order to make the final
determination.
   (d) An employee who claims an industrial injury shall, upon
request, disclose all previous permanent disabilities or physical
impairments.
   (e) Subdivisions (a), (b), and (c) shall not apply to injuries or
illnesses covered under Sections 3212, 3212.1, 3212.2, 3212.3,
3212.4, 3212.5, 3212.6, 3212.7, 3212.8, 3212.85, 3212.9, 3212.10,
3212.11, 3212.12, 3213, and 3213.2.

Last modified: February 13, 2012