MedicaidReimbursementMedium impact
Clarification Regarding Mobile Crisis Response (MCR) Procedure Code S9484 Claim Adjustments
Illinois Medicaid - HFS·IL · Psychiatry·Provider Notice
Effective date
Jan 22, 2020
We identified it
Jun 20, 2026
Summary
Illinois Medicaid has clarified payment adjustments for Mobile Crisis Response procedure code S9484, allowing providers to resubmit claims that were paid at incorrect rates for dates of service from August 1, 2018 onward. The timely filing limit has been extended through June 15, 2020 for electronic resubmissions.
Action Required
By June 15, 2020: Billing team should review all S9484 Mobile Crisis Response claims for dates of service from August 1, 2018 onward to identify any that were paid at incorrect rates. Submit replacement claims via MEDI or 837P electronic transactions for underpaid claims. Contact community mental health billing consultant at 877-782-5565 (option sequence 1, 2, 4, then 8) with questions about claim adjustments.