All services must be provided in accordance with MO HealthNet standards. The contractor should observe the requirements below: The contractor shall provide assessment services to identify the treatment needs of the client or family for the purpose of assisting the Department to develop and implement a treatment plan to correct or minimize those needs. The assessment shall include at least one (1) face-to-face diagnostic interview between the therapist and the client which may include the use of tele-mental health or other technology as approved by the Department, not to exceed the maximum units for which the contractor has received prior authorization from the Department. The assessment shall also include administering, scoring or interpreting instruments used to identify the treatment needs of a client. The diagnostic assessment may be conducted according to the following schedule: • One (1) time per year for adults and adolescents (age thirteen [13] to twenty [20]) • Every six (6) months for children under age thirteen (13) • The assessment may be updated for occurrence of crisis or significant clinical event