Disability Insurance that pays out if a policyholder is unable to work and earn an income due to a disability. In case of an accident or disease, such a policy can protect you financially if you become disabled as a result of it.Arthritis and other musculoskeletal system disabilities make up the most commonly approved conditions for social security disability benefits. This is because arthritis is so common.Money that is paid by the government to someone who cannot work because of an illness, injury, or medical condition: If your injuries are bad enough, you will have to claim disability benefit.