What should we do when the hospital says Mom can't go home?
Before discharge: ask two questions. First, was your parent formally admitted, or kept "under observation"? Original Medicare only pays for rehab in a nursing facility after 3 days as an inpatient (Medicare Advantage plans set their own rules). Second, where is the discharge plan sending them, and is it safe? If you think the discharge is too soon, ask for a fast appeal before they leave. You can usually stay while it's reviewed without paying for the extra days. After day 20 in rehab, Original Medicare charges $217 a day. Then: call your local aging office. It's free.