How about a Supervisa, for 79 year old lady, had a previous heart attack 5 years ago but is now stable on heart medication. Would medical insurance be possible and would it have exclusions?

My mom and dad apply march 19 they got their medical May 2 may 30 visa approve but only my mom stii waiting for my dad my question is is this really happen nauna yung mom Ko, anyway kumuha kami ng 2way ticket kasi yun sinabi nila June 30 ang flight ng mom ko mauna muna siya then yung return niya na ...