MedicaidReimbursementHigh impact
MMP 26-24: Hospital 15-Day Readmissions
Michigan Medicaid - MDHHS·MI·Specialty Services
Effective date
Aug 1, 2026
We identified it
Jul 7, 2026
Summary
Michigan Medicaid modifies hospital readmission reimbursement effective August 1, 2026. Readmissions within 15 days to a DIFFERENT hospital for the same condition now receive FULL PAYMENT to both hospitals (separate episodes), whereas readmissions to the SAME hospital for related conditions remain bundled as single episodes. Unrelated readmissions are always separate episodes regardless of hospital.
Action Required
By July 15, 2026: Billing team must review and update hospital billing software logic to correctly identify and process 15-day readmissions per MMP 26-24 rules. Specifically: (1) Configure system to flag readmissions within 15 days and determine if condition is same, related, or unrelated; (2) Route same-condition readmissions to different hospitals for full separate payment; (3) Continue bundling same-hospital related-condition readmissions as single episodes; (4) Ensure all unrelated readmissions are billed as separate episodes. Update billing documentation and staff training materials. Verify prior authorization and service criteria limits remain applied per existing policy. Contact ProviderSupport@michigan.gov (800-292-2550 for typical providers) with questions before implementation. Failure to comply will result in incorrect claim payment and potential recovery actions from Medicaid Health Plans.