Grade 0: Fully active, able to carry on all pre-disease performance without restriction
Grade 1: Restricted in physically
strenuous activity but ambulatory
and able to carry out work of a
light or sedentary nature, e.g.,
light house work, office work
Grade 2: Ambulatory and capable of all
selfcare but unable to carry out
any work activities. Up and about
more than 50% of waking hours
Grade 3: Capable of only limited
selfcare, confined to bed or chair
more than 50% of waking hours
Grade 4: Completely disabled. Cannot
carry on any selfcare. Totally
confined to bed or chair
Grade 5: Dead