My half-brother is still in the process of it for physical and mental disabilities, and my aunt actually JUST got approved yesterday for physical and mental disabilities! She pretty much put for every single body part you could possibly imagine. If you ask me sometimes it's a little harder... They have more to verify and check on, you know? So it might be a little harder/longer. My half-brother applied well before her and is still ongoing because of the multitude of things he listed.

But yes, it's very possible! Just don't get discouraged from a few rejections! My aunt got rejected once, and I've got rejected more times than I can count! (It took me four years to get approved!) What everyone tells me is that the disability office really wants people to give up and it seems like it's true...