Section 16.03.09.702 - INPATIENT BEHAVIORAL HEALTH SERVICES: COVERAGE AND LIMITATIONS01.Initial Length of Stay. An initial length of stay, or a prior authorization requirement, will be established by the Department, or its designee, in the Idaho Medicaid Provider Handbook. Requirements for establishing length of stay will never be more restrictive than requirements for non-behavioral health services in a general hospital.02.Extended Stay. The Department, or its designee, will establish authorization requirements in the Idaho Medicaid Provider Handbook. An authorization is necessary when the appropriate care of the participant indicates the need for inpatient days in excess of the initial length of stay or previously approved extended stay.Idaho Admin. Code r. 16.03.09.702