Can anyone tell me Medicare rules about rehab?

When MIL was admitted who signed the papers? At that time she should have been told what the cost would be to her.

Medicare pays 100% for the first 20 days. 21 to 100 is 50%. After 100 days its private pay. Supplimentals pay some but there is usually a balance. For my Mom it was $150 a day. If the person can't afford the cost they may be able to get Medicaid to help. This is how billing works.

Rehabs send regular reports to Medicare. Based on these reports, Medicare determines if the person needs further care. If they determine that the person has hit a plateau, then they recommend discharge.

I have never heard of a rehab not billing Medicare to save paperwork. If they except Medicare, they must bill them.

My mother is in Rehab now........I was told that Medicare will pay for 21 days of Rehab (as long as she's making progress with PT/OT) and then, if she needs more time in the Rehab facility, Medicare will pay 80% up to day 100, then nothing thereafter. I don't know if this is true or not, it's just what I was told. Also, there are different types of Medicare coverage, and they can differ quite a bit. For instance, my mother has a Blue Cross/Blue Shield Advantage PPO plan which is a lot worse than standard Medicare coverage, with lots more rules and hoops to jump through. So I'd say, check with your MILs insurance plan directly.

Hopefully someone knowledgeable will be along soon, in the meantime I hope this helps a little:

https://www.agingcare.com/articles/medicare-coverage-of-skilled-nursing-facility-153265.htm