Manuals Manuals and Guides Updated Manual: Children's Mental Health Medicaid Services Provider Manual (Effective January 1, 2021) Children's Mental Health Bureau Non-Medicaid Services Provider Manual (Effective October 14, 2017) Archived Manuals Children's Mental Health Medicaid Services Provider Manual (Effective March 1, 2020) Children's Mental Health Medicaid Services Provider Manual (Effective July 1, 2018) For previous manuals: e-mail Children's Mental Health or call the Medicaid Program Officer at (406) 444-4545.