A body part's impairment tier, by magnitude (#470): none (0), minor
(−1…−5), serious (−6…−10), grievous (≤ −11). Injuries reach at most
serious (a grievous injury makes the part unusable rather than adding a
number); the grievous tier is only reached via permanent impairment.
A body part's impairment tier, by magnitude (#470):
none(0),minor(−1…−5),serious(−6…−10),grievous(≤ −11). Injuries reach at mostserious(a grievous injury makes the part unusable rather than adding a number); thegrievoustier is only reached via permanent impairment.