A few of you have pointed out, that there seem to be a few 'living dead' that are in hopsitals AFTER they (supposedly) died.
There are a few legitimate scenarios where this can happen (overlapping hospital stays) and there are a few that are clearly wrong.
So it may be a data error/honest mistake or the more sinister scenario: insurance fraud.
As it is: there is nothing I can do about it. You will have to deal with this.