In some cases, this form is grammatically correct, if the name of the disability cannot be transformed into an adjective. An often used example is "child with Down's Syndrome" instead of "Down's Syndrome child". No attempt can change Down's Syndrome, cerebral palsy, muscular dystrophy, etc. into an adjective.
Politically Correct Pussy that can't handle the truth: "No Jim, rather than saying that, tell people that you are a piece of monkey shit who sucks, and is retarded."