Indemnity plan 
Indemnity insurance plans are an alternative to managed care plans. These plans charge consumers a set amount for coverage and reimburse (fully or partially) consumers for most medical services.
Independent living services 
Support for a young person living on his or her own. These services include therapeutic group homes, supervised apartment living, and job placement. Services teach youth how to handle financial, medical, housing, transportation, and other daily living needs, as well as how to get along with others.
Individualized services 
Services designed to meet the unique needs of each child and family. Services are individualized when the caregivers pay attention to the needs and strengths, ages, and stages of development of the child and individual family members. Also see appropriate services and family-centered services.
Individual Therapy 
Therapy tailored for a patient/client that is administered one-on-one.
Information and Referral Services 
Information services are those designed to impart information on the availability of clinical resources and how to access them. Referral services are those that direct, guide, or a client/patient with appropriate services provided outside of your organization.
In Home Family Services
Mental health treatment and support services offered to children and adolescents with mental illness and to their family members in their own homes or apartments.
Inpatient hospitalization 
Mental health treatment provided in a hospital setting 24 hours a day. Inpatient hospitalization provides: (1) short-term treatment in cases where a child is in crisis and possibly a danger to his/herself or others, and (2) diagnosis and treatment when the patient cannot be evaluated or treated appropriately in an outpatient setting.
Intake/ Screening
Services designed to briefly assess the type and degree of a client's/patient's mental health condition to determine whether services are needed and to link him/her to the most appropriate and available service. Services may include interviews, psychological testing, physical examinations including speech/hearing, and laboratory studies.
Intensive case management 
Intensive community services for individuals with severe and persistent mental illness that are designed to improve planning for their service needs. Services include outreach, evaluation, and support.
Intensive Residential Services 
Intensively staffed housing arrangements for clients/patients. May include medical, psychosocial, vocational, recreational or other support services.
Interpersonal Psychotherapy 
Through one-on-one conversations, this approach focuses on the patient's current life and relationships within the family, social, and work environments. The goal is to identify and resolve problems with insight, as well as build on strengths.