The attached list from the National Disability Rights Network (NDRN) depicts phrases and terms that are generally considered appropriate, as well as terms and phrases to avoid using. Please keep in mind that language is constantly evolving and not everyone has the same preference, so the best guideline when referring to people is to ASK.
Click here to download the NDRN etiquette guide: http://www.ndrn.org/en/media/disability-etiquette/435-words-matter.html