See references please

This is always "accessible toilet" now.

Likewise, if referring to people broadly, the current usage is "persons/people with a disability", but wherever you can, you should ideally swap this for the specific context, and avoid "impairment" or "disability" actually (definitely avoid "differently abled" as that was a thing but hasn't been a thing for a while), and if you can find something like "accessible" which doesn't focus on the actual person at all, it's even better. So, as you already know, we have "PRMs" for "persons of reduced mobility", and you also have "persons with low vision" as opposed to "visually impaired” or even “persons with a visual impairment". The general approach is that we want to separate the particular issue from the person, because this isn't what defines them as a person, and ideally avoid any implication that this is lesser or preventing them from doing things. I work a lot with text referring to persons with a disability, so I can fairly confidently say that this is the current approach. "Accessible" is probably one of the best ways to approach this as well, as you can use this for lots of facilities, such as rooms in a hotel and then we don't have to mention disabilities at all and it's inclusive for everybody.