Overview of Systems for Rating Impairment
| Rating System |
Used for These
Conditions |
Form of the
Rating |
| RCW 51.32.080 |
Specified
disabilities: Loss
by amputation,
total loss of vision
or hearing |
Supply the
level of
amputation |
| AMA Guides
to the
Evaluation of
Permanent
Impairment |
Loss of function of
extremities, partial
loss of vision or
hearing |
Determine the
percentage of
loss of
function, as
compared to
amputation
value listed in
RCW 51.32.080 |
| Category
Rating System |
Spine, neurologic
system, mental
health, respiratory,
taste and smell,
speech, skin, or
disorders affecting
other internal
organs |
Select the
category that
most accurately
indicates
overall
impairment |
| Total Bodily
Impairment
(TBI) |
Impairments not
addressed by any
of the rating
systems above,
and claims prior to
1971 |
Supply the
percentage of
TBI |