Approval to implement the Missouri Substance Use Disorder and Serious Mental Illness 1115(a) Demonstration Waiver was received on December 6, 2023. Through this demonstration, the state will expand access to a full continuum of services across American Society of Addiction (ASAM) levels of care statewide for opioid use disorder (OUD) and other substance use disorders (SUD), as well as support access to a full continuum of mental health treatment services, by allowing Medicaid coverage and reimbursement for inpatient psychiatric services provided to eligible adults with SUD ages 12-64 within an IMD. Approval of the SUD program will allow the state to add Medicaid reimbursement for residential SUD services for individuals who meet medical necessity criteria, including residential SUD services in facilities that qualify as an institution for mental disease (IMD). In addition, approval of the serious mental illness (SMI) program will allow the state to add reimbursement for acute inpatient stays in an IMD.
Public Notice
Waiver Documents
- Missouri Serious Mental Illness - Section 1115 Waiver
- Missouri SMI 1115 Waiver Narrative
- Missouri Substance Use Disorder - Section 1115 Waiver
- Missouri SUD 1115 Waiver Narrative
- MO Substance Use Disorder and Serious Mental Illness 1115(a) Demonstration Waiver Demonstration Year one (1) Monitoring Report
- General Monitoring and Evaluation Information
Provider Manual
Education & Training
Forms
Resources
MO HealthNet News
The table below provides general information and updates that are relevant to this program page, as well as all MO HealthNet providers. To find information for all other MO HealthNet programs, or to search by date, program or keyword, visit the MO HealthNet News page. If you would like to receive updates in your inbox, subscribe to MO HealthNet News!
| Date | Volume Number | Subject | Type | Program |
|---|---|---|---|---|
| 10/01/2026 | 49-17 | ICD-10 Annual Update | Bulletins | All MO HealthNet Providers |
| 09/24/2026 | Updated MO HealthNet Provider Training Schedule Now Available | Hot Tips | All MO HealthNet Providers | |
| 09/23/2026 | Missouri Waiver Programs: Information for Participants & New Navigation Tool | Hot Tips | All MO HealthNet Providers | |
| 09/21/2026 | FCSR Registration Fee Increase | Hot Tips | All MO HealthNet Providers | |
| 09/16/2026 | Provider Enrollment Update | Hot Tips | All MO HealthNet Providers | |
| 09/04/2026 | 49-14 | REVISED Billing Guidance Update for Specialized Infant Formulas | Bulletins | All MO HealthNet Providers |
| 09/01/2026 | Physical Therapy | Hot Tips | All MO HealthNet Providers | |
| 08/25/2026 | 49-12 | Participation Requirements for MO HealthNet Managed Care | Bulletins | All MO HealthNet Providers |
| 08/18/2026 | Changes to Preferred Biosimilar Medications | Hot Tips | All MO HealthNet Providers | |
| 08/18/2026 | Resolve Managed Care Claim Issues Faster with Our New Online Form! | Hot Tips | All MO HealthNet Providers | |
| 08/17/2026 | Optimizing Benefits for Maternal and Infant Health: Join Us in Joplin on September 22 | Hot Tips | All MO HealthNet Providers | |
| 08/12/2026 | Manually Priced Procedures | Hot Tips | All MO HealthNet Providers | |
| 08/10/2026 | Pharmacy Administration Helpdesk Change of Business Hours | Hot Tips | All MO HealthNet Providers | |
| 08/03/2026 | Changes to Preferred Biosimilar Medications Effective October 1, 2026 | Hot Tips | All MO HealthNet Providers | |
| 08/03/2026 | TPL Insurance Forms Portal | Hot Tips | All MO HealthNet Providers |