What is the 3-day rule for Medicare and how does it impact your coverage?

If you're a senior on Medicare, you need to know how the 3-day rule affects your coverage and what exceptions might apply. William_Potter/Getty Images

Navigating Medicare coverage can feel like trying to solve a particularly challenging puzzle, especially when it comes to hospital stays and skilled care. After all, this senior-focused coverage has stringent rules and restrictions tied to it. And, when you factor in the numerous types of Medicare coverage, from Part A to Part D, some of which are optional, it can make these coverage restrictions even more difficult to navigate.

But with nearly 69 million Americans relying on Medicare today, understanding these rules — and knowing which ones can have a big impact on your out-of-pocket costs — is essential for the retirees and s