birth mom never given fair shot at Medicaid; one bill lingers

This summer we finalized the adoption for our baby born in December. At the time of the birth, our birth mom applied for Medicaid (was unemployed/uninsured) with hospital staff assistance. Baby qualified for Medicaid for the 3 days between birth and placement with no problem. But after birth mom kept patiently waiting excessively long to hear from the county JFS on the status of her application (as she was instructed to do by hospital), we finally found out it was never received by the county. Hospital never admitted fault in failing to send it to county but we suspect that was the issue. After our agency intervened the hospital finally wrote off the major bill to HCAP (Ohio's version of Medicaid). One medium-sized bill lingers, but since our birth mom was never given a fair shot at Medicaid, that office is awaiting full payment and won't negotiate to a lesser amount. I've heard birth mom can reapply for Medicaid up to 90 days after birth which we are well past. Is there anything we can do?