The Babysitter's Club books involving Matt Braddock, who's deaf.
Or Kristy and the Secret of Susan, about an autistic girl

Two of my short stories feature a girl who has Asperger's. "And A Chook Shall Lead Them" and "Sliding Down the Pohutukawa Root."

I also found this list: http://www.springfieldlibrary.org/reading/disabled.html

Hope that helps a little bit!