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Class 2 Impairment of Lower Extremity, 6—24%The patient experiences intermittent claudication on walking at least 100 yards at an average pace; or
There is persistent edema of a moderate degree, incompletely controlled by elastic supports; or
There is vascular damage as evidenced by a sign, such as that of a healed, painless stump of an amputated digit showing evidence of persistent vascular disease, or of a healed ulcer.
Class 3 Impairment of Lower Extremity, 25—50%
The patient experiences intermittent claudication on walking as few as 25 yards and no more than 100 yards at average pace; or
There is marked edema that is only partially controlled by elastic supports; or
There is vascular damage as evidenced by a sign such as healed amputation of two or more digits of one extremity, with evidence of persisting vascular disease or superficial ulceration.
Class 4 Impairment of Lower Extremity, 51 —79% The patient experiences intermittent claudication on walking less than 25 yards, or the patient experiences intermittent pain at rest; or
The patient has marked edema that cannot be controlled by elastic supports; or
There is vascular damage as evidenced by signs such as an amputation at or above an ankle, or amputation of two or more digits of two extremities with evidence of persistent vascular disease, or persistent widespread or deep ulceration involving one extremity. Class 5—Impairment of Lower Extremity, 80—95
The patient experiences severe and constant pain at rest; or
There is vascular damage as evidenced by signs such as amputations at or above the ankles of two extremities, or
amputation of all digits of two or more extremities, with evidence of persistent vascular disease or of persistent, widespread, or deep ulceration involving two or more extremities.
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