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