Multi-joint arthritis (except post-traumatic and gout), 2 or more joints, as an active process

One or two exacerbations a year in a well-established diagnosis

Symptom combinations productive of definite impairment of health objectively supported by examination findings or incapacitating exacerbations occurring 3 or more times a year

Less than criteria for 100% but with weight loss and anemia productive of severe impairment of health or severely incapacitating exacerbations occurring 4 or more times a year or a lesser number over prolonged periods

With constitutional manifestations associated with active joint involvement, totally incapacitating