Missouri Medicaid

Does Missouri Medicaid cover Mounjaro?

Quick answer · Type 2 Diabetes

Missouri Medicaid covers Mounjaro for type 2 diabetes with prior authorization on Medicaid.

  • Medicaid: Covered with requirements. Diagnosis documented with a code

Last verified June 3, 2026. Policy effective January 9, 2025. Source: policy-310.html. How we verify this data →

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Mounjaro for Type 2 Diabetes

What Missouri Medicaid requires, by plan type. Open this indication on its own page →

Medicaid

Covered with requirements

What you need to qualify

  • Diagnosis documented with a code
  • Trial of metformin for at least 730 days, or a documented reason it can't be used
  • Prior trial of 3 other GLP-1 medications (preferred GLP-1 receptor agonists (Ozempic, Trulicity, Victoza)) for at least 90 days

Qualification pathways

You can qualify through any one of these.

Non-preferred agent — documented compliance to current therapy

All of:

  • Mounjaro is a non-preferred agent
  • Documented compliance to current therapy

Non-preferred agent — step therapy failure of preferred agents

All of:

  • Mounjaro is a non-preferred agent
  • Documented diagnosis of type 2 diabetes mellitus in the past year
  • Adequate therapeutic trial of metformin in the past 2 years
  • Failure to achieve desired therapeutic outcomes with trial on 3 or more preferred agents for 3 months each
  • Clinical consultant review for reason of medical necessity why Zepbound cannot be utilized

Plus any one of:

  • Documented trial period of preferred agents
  • Documented ADE/ADR to preferred agents

Documentation to bring

  • Documented diagnosis of type 2 diabetes mellitus in the past year
  • Documentation of adequate therapeutic trial of metformin in the past 2 years
  • Documentation of trial on 3 or more preferred GLP-1 agents for 3 months each with failure to achieve desired therapeutic outcomes, OR documented ADE/ADR to preferred agents
  • Clinical consultant review documentation for reason of medical necessity why Zepbound cannot be utilized
  • OR: Documentation of compliance to current therapy (alternative pathway)

Quantity limits

  • 2.5 mg/0.5 mL, 5 mg/0.5 mL, 7.5 mg/0.5 mL, 10 mg/0.5 mL, 12.5 mg/0.5 mL, 15 mg/0.5 mL — 2 mL per 28 days

Approval and renewal

  • Initial approval: 12 months
  • Renewal: every 12 months

Not covered when

  • Concurrent therapy with another GLP-1 receptor agonist

Policy note: Mounjaro is a non-preferred agent on the MO HealthNet PDL for diabetes. In addition to standard non-preferred agent step therapy criteria, there is an additional requirement for clinical consultant review for medical necessity documenting why Zepbound cannot be utilized. The document notes GLP-1 receptor agonists for anti-obesity are covered under a separate PDL edit; Zepbound is referenced as a comparator/alternative rather than being covered under this policy.

Policy effective January 9, 2025 · verified June 3, 2026 · source: policy-310.html

Why Mounjaro requests get denied by Missouri Medicaid

Based on what this policy asks for. Fix these before the first submission.

  1. Wrong brand for the diagnosis. Mounjaro and Zepbound are the same molecule with different approved uses; a request for Mounjaro under a diagnosis that matches Zepbound is routinely denied.
  2. Diagnosis code missing or wrong on the request.
  3. No documented metformin trial (dose, dates, and outcome) or a stated reason it can't be used.
  4. Required prior medication trials not documented.

Frequently asked questions

Does Missouri Medicaid cover Mounjaro?
Missouri Medicaid covers Mounjaro for type 2 diabetes with prior authorization on Medicaid.
Do you have to try metformin before Mounjaro?
Yes for type 2 diabetes: Missouri Medicaid requires a documented trial of metformin of at least 730 days, or a documented reason it can't be used.
How long does a Mounjaro approval last with Missouri Medicaid?
Initial approvals last 12 months, and renewals are granted in 12-month periods.
How current is this information?
This page reflects Missouri Medicaid's written policy as of January 9, 2025, last verified against the source document on June 3, 2026.

Other medications under Missouri Medicaid

Mounjaro coverage under other plans

All insurance plans · All medications

This page summarizes Missouri Medicaid's written prior-authorization policy. It is not a guarantee of coverage; plans vary by employer and benefit design. Verify with your plan before relying on it.