The working reference for Missouri billing teams: who the payers are, how MO HealthNet managed care is structured, and the filing windows that govern your claims. Updated July 2026.
Missouri MO HealthNet is a mixed managed care and fee-for-service Medicaid program. The state FFS timely filing limit is 12 months (13 CSR 70-3.100), but each MO HealthNet MCO independently sets shorter timely filing windows — commonly 90 to 180 days. Billing teams that assume all Missouri Medicaid claims follow the 12-month state window will face denials on MCO claims. Anthem Blue Cross and Blue Shield is the dominant commercial insurer and also operates Healthy Blue (the MO HealthNet MCO) — commercial and Medicaid workflows must remain strictly separate. Missouri does not have a standalone state balance billing law and relies on the federal No Surprises Act. A full statewide managed care rebid was issued July 2026, with new contracts anticipated for 2027.
Administered by the Missouri Department of Social Services (DSS), MO HealthNet Division. Missouri released a comprehensive statewide managed care RFP on July 1, 2026 — new contracts are expected to launch in 2027. Monitor DSS/MHD announcements for any MCO changes.
| Plan | Notes |
|---|---|
| Home State Health | Missouri-focused MCO, subsidiary of Centene Corporation. Statewide |
| Healthy Blue (Missouri) | Anthem / Elevance Health subsidiary. Formerly Anthem Medicaid in MO. Statewide. Timely filing commonly 90–180 days per MCO contract — verify separately from commercial Anthem |
| UnitedHealthcare Community Plan (Missouri) | National MCO, statewide MO HealthNet operations. Separate from commercial UHC |
| TrueCare of Missouri | New nonprofit plan added in 2025. Expanding member choice in certain regions. Verify current service area and credentialing requirements |
The state MO HealthNet FFS limit is 12 months — but MCO claims are governed by each plan's individual contract, commonly 90–180 days. This is the most common billing error in Missouri.
Verified against payer publications (July 2026). Filing limits change by contract and plan year — treat this table as a starting point, not a substitute for the payer manual.
The state MO HealthNet FFS timely filing limit is 12 months (13 CSR 70-3.100), but each managed care MCO sets its own timely filing in its provider contract — commonly 90 to 180 days. Billing teams that assume all Missouri Medicaid claims follow the 12-month window and delay submission will face denials on MCO claims. Maintain a payer-specific filing calendar for each MCO.
Missouri does not have a robust standalone state balance billing protection law comparable to New Jersey's. Missouri providers and patients rely primarily on the federal No Surprises Act (effective January 2022) for out-of-network and surprise billing protections. The federal IDR process governs billing disputes. Self-funded ERISA plans have NSA protections but no additional Missouri state-level protections.
Missouri released a comprehensive statewide Medicaid managed care RFP on July 1, 2026, with new contracts expected to launch after January 2027. This rebid may result in new MCO entrants, exiting MCOs, new contract terms, and member reassignments. Monitor DSS/MHD announcements for contract awards and prepare for possible changes to payer IDs, credentialing requirements, and authorization processes.
Missouri expanded Medicaid to adults up to 138% FPL via ballot initiative in July 2021 — one of the later expansion states. Because of the late expansion and historical gaps, some eligible residents may be unaware of eligibility. Billing teams should screen patients for potential MO HealthNet eligibility rather than assuming uninsured or self-pay status, particularly for adults between 100–138% FPL.
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