let me disclaim that this is not legal advice, for that you should seek a lawyer.
But whether something is a "disability" depends on who is defining it. For example, under the Americans with Disabilities Act, a disability is anything that substantially affects a major life activity, or the person otherwise is regarded as having this kind of limitation (even if theydon't). If someone is fired or suffers adverse workplace treatment because of a "disability", he or she would have a claim for employment discrimination under the ADA.
In my experience, and reading some of the posters on this site, pilo can substantially limit some life activities...
No it's not. I have other disabilities but by no means does the government consider this a disability, I've lost 2 jobs because of this disease so I'm not really sure why. I'm thinking it's because we can go have a procedure done and get back to some kind of work within a month or two, with a disability the person does not get better and cannot get back to work at all.