MedicaidAdministrativeMedium impact
[Ohio] Resubmitted Claims Advisory
CareSource·OH·Provider Bulletin
Effective date
Aug 28, 2026
We identified it
Sep 3, 2026
Summary
CareSource inadvertently retransmitted previously submitted claims to Ohio Medicaid on August 28, 2026, resulting in duplicate claim acknowledgements (277CA). Providers may receive new acknowledgement files for claims already processed. No action is required—providers should ignore duplicate responses, and CareSource will remove invalid transmissions from their systems.
Action Required
Immediate: Billing team should monitor for duplicate claim acknowledgement (277CA) files received from CareSource for claims previously submitted and processed. When duplicate acknowledgements are identified, disregard them and do not attempt to resubmit or adjust the original claims. No system updates or workflow changes are required. Document any duplicate acknowledgements received for reference if CareSource requests follow-up information. Contact CareSource Provider Services at 1-800-488-0134 (Mon-Fri, 8 a.m.–6 p.m. ET) only if specific claims require clarification.