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Table 13-11
Criteria for Rating Impairments of the Upper Extremities due to CNS Dysfunction
CLASSCLASS 0CLASS 1CLASS 2CLASS 3CLASS 4
WHOLE PERSON IMPAIRMENT RATING (%) 0% 

1%–5%

Nondominant

1%–10%

Dominant

 

6%–15%

Nondominant

11%–20%

Dominant

 

16%–30%

Nondominant

21%–40%

Dominant

 

31%–50%

Nondominant

41%–60%

Dominant

 
DESCRIPTION Patient has no impairment of upper extremity function Individual can use the involved extremity for ADLs and holding but has difficulty with digital dexterity Individual can use the involved extremity for ADLs, can grasp and hold objects with difficulty, but has no digital dexterity Individual can use the involved extremity only as a gross assist in ADLs Individual cannot use the involved extremity for ADLs 
CLASSCLASS 0CLASS 1CLASS 2CLASS 3CLASS 4
WHOLE PERSON IMPAIRMENT RATING (%) 0% 

1%–5%

Nondominant

1%–10%

Dominant

 

6%–15%

Nondominant

11%–20%

Dominant

 

16%–30%

Nondominant

21%–40%

Dominant

 

31%–50%

Nondominant

41%–60%

Dominant

 
DESCRIPTION Patient has no impairment of upper extremity function Individual can use the involved extremity for ADLs and holding but has difficulty with digital dexterity Individual can use the involved extremity for ADLs, can grasp and hold objects with difficulty, but has no digital dexterity Individual can use the involved extremity only as a gross assist in ADLs Individual cannot use the involved extremity for ADLs 
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