Hi and welcome.
I was a health professional at the time of diagnosis. In my case I haven't been able to work since the day I was diagnosed. My psychiatrist said "I can't in good conscience let you near your work. In the state you're in, you will lose your professional reputation etc".
I DID speak to my HR etc. They were great. They kept my position open for 6mths and when I was still too ill to return to work they made sure I got salary continuance through insurance. I will have this payment until 65yrs. So my experience with how work dealt with me was good.