Grading System for Functional Disability in Rheumatoid Arthritis

Functional Ability

Grade

complete ability to carry out all the usual duties without handicap

I

adequate for normal activities despite handicap of discomfort or limited motion of one of the joints

II

limited to little or none of the duties of usual occupation or self-care

III

incapacitated, largely or wholly bed-ridden or confined to a wheelchair with little or no self-care

IV