How Long Will Medicare Pay For A SNF? 
Original Medicare includes coverage as an inpatient in a SNF -LRB- skilled nursing facility -RRB- . If you qualify for coverage , Medicare will cover the full cost of care for up to 20 days . For days 21 through 100 , Medicare will pay a portion of the cost and you will be responsible for a daily copay . -LRB- $ 148 in 2013 -RRB- 