By Attorneys AlisonStewart and Nick Cooling, and Law Clerk Jordan Gehlhaar
Recent arbitration decision, Rife v. P.M.Lattner Manufacturing Company, reviewed apportionment of disability
and an employer’s right to a credit. The issue in this case was whether the
employer was entitled to a credit for 29.6 percent industrial disability it
paid as settlement of a prior shoulder injury.
Claimant Rife worked as a welder at P.M. Manufacturing for most
of his career. In 2009 he experienced a work-related right shoulder injury
resulting in surgery and permanent functional impairment. Rife and P.M. entered
into a full commutation settlement in 2010, which stipulated to a permanent
disability of 29.6 percent to the body as a whole. At this time, the shoulder
was not a scheduled member, so all shoulder injuries were to the body as a
whole. Three different doctors provided impairment ratings, but it was not
clear which rating was the basis of the settlement. Rife returned to work for
P.M. after this injury.
Claimant Rife had no issues with his right shoulder until
experiencing another work-related injury in 2018. He underwent another surgery and was
diagnosed with adhesive capsulitis, partial thickness tears of the rotator cuff
and labrum, and impingement. The claimant obtained an independent medical
examination (IME) that assessed a 19 percent right upper extremity impairment,
or 11 percent of the whole person. Importantly, the doctor did not distinguish
between the 2009 and 2018 injuries when assessing the claimant’s impairment.
The employer sought apportionment of disability under Iowa
Code 85.34(7) for successive disabilities, which provides, in part:
“An employer is not liable for compensating an employee’s
preexisting disability that arose out of and in the course of employment from a
prior injury with the employer, to the extent that the employee’s preexisting
disability has already been compensated under [workers’ compensation law].”
The Deputy found the employer was
not entitled to a credit for the loss assigned to the first injury “under the
version of Iowa Code section 85.34(7) that is now in effect.” Previous versions
of this statute explained how an offset was to be calculated. But in this
version, the legislature provided no mechanism for apportioning the loss
between a present injury and prior injury.
Additionally, it was reasoned: (1)
the settlement agreement for the first injury did not specify what impairment
rating the parties adopted, (2) the employer did not obtain an impairment
rating for the second injury or an expert opinion apportioning the two
injuries, and (3) a claimant with a prior unscheduled shoulder injury and a
subsequent scheduled shoulder injury would likely not receive any additional
compensation.
The opinion suggests that an
employer is more likely to receive a credit where it is clear what impairment
rating was used for both the first and second injuries, the second rating
doctor differentiates the percentages for each injury, and the employer
provides an expert on the issue. However,
based on the Agency’s interpretation of the statute, apportionment credit is
not likely absent legislative amendment.
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