I appealed for skilled care for my father. Medicre declined skilled nursing rehab after the facility reported no improvement after 2 weeks. I completed the appeal form and won on a technicality. I made my appeal a day before July 4th and the facility had to respond in 24 hours. Since that included the holiday, the deadline was not met and my dad got another 2 weeks.
Is your mom able to do physical therapy? If so, that should qualify her for at least a week or two of skilled nursing care. Other things that would qualify her would be IV therapy or injection, wound care...anything that requires a LVN or RN rather that a general caregiver. Unfortunately, not being able to go to the restroom or bathe herself doesn't qualify. I would focus on the physical therapy. Unfortunately, since my Dad did not progress with physical therapy, he ended up having to go to a nursing home.