MedicaidBilling CodesHigh impact
Behavioral Health Manual Update
Missouri Medicaid (MO HealthNet)·MO · Psychiatry, Pediatrics, Family Medicine·Provider Notice
Effective date
Oct 1, 2015
We identified it
Jun 20, 2026
Summary
MO HealthNet Division now requires specific ICD-10 diagnosis codes for all behavioral health services claims effective October 1, 2015. Claims for mental health, behavioral interventions, and EPSDT/HCY screening services must use designated ICD-10 codes from updated manual sections to receive reimbursement.
Action Required
Immediately: Billing team must update system to require specific ICD-10 diagnosis codes for all MO HealthNet behavioral health claims. Use only codes listed in updated Behavioral Health Services Manual sections 13.24.B, 13.25.A, 18.2, and 18.3. For EPSDT/HCY screening services, ensure primary diagnosis is Z00110, Z00111, Z00121, or Z00129. Claims with non-compliant diagnosis codes will be denied for reimbursement.