impairment A physical or mental condition which will last for 12 consecutive months or result in death, and which prevents a person from working. A factor in determining disability for SSI and SSI-related Medical Assistance categories.

A physical or mental condition that will last for 12 consecutive months or result in death and that prevents a person from working. Impairment is a factor in determining disability for SSI Supplemental Security Income. and SSI-related Medical Assistance categories.