ASAM Criteria is a widely used comprehensive set of guidelines to assist in the placement, continued stay, transfer, and discharge of patients with substance use disorder and co-occurring conditions. Patients can move between ASAM levels depending on their unique needs on the addiction spectrum.

Level 0.5 – Early Intervention

Level 0.5 treats patients who may be at risk for developing substance-related problems and not yet diagnosed with a substance use disorder. 

Level 1 – Outpatient

Level 1 provides outpatient services consisting of less than nine hours weekly for adults and less than 6 hours weekly for adolescents to promote recovery and engage in motivational enhancement therapies and strategies. 

Level 1 OTP – Opioid Maintenance Therapy

Level 1 OTP provides medication-assisted treatment (link) specific to opioid addiction.  

Level 2 – IOP – Intensive Outpatient

Level 2 IOP is a structured therapeutic outpatient setting that delivers services for nine or more hours a week, or six or more hours of services a week for adolescents. 

Level 2.5 – Partial Hospitalization

Level 2.5 Partial Hospitalization provides 20 or more hours of clinically intensive programming per week based on individual treatment plans. 

Level 3 – Residential/Inpatient Treatment

 Level 3 Residential/Inpatient Treatment patients receive around-the clock care from addiction professionals and clinicians at an inpatient facility.

Level 3.1 – Clinically Managed Low-Intensity Residential Services

Level 3.1 Clinically Managed Low-Intensity Residential Services is a structured environment with 24 hour living support with at least 5 hours of programming provided each week directed towards preventing relapse, applying recovery skills, and reintegration. Level 3.1 can include halfway housing or transitional Housing.

Level 3.3 – Clinically Managed Population Specifical High-Intensity Residential Services

Level 3.3 Clinically Managed Population Specifical High-Intensity Residential Services is long term residential care which provides a structured environment with 24-hour care in combination with residential services and group treatment.

Level 3.5 – Clinically Managed High-Intensity Residential Services

Level 3.5 Clinically Managed High-Intensity Residential Services is a structured therapeutic community environment with 24-hour care in combination with a full active milieu to support and promote recovery and prepare for outpatient treatment.

Level 3.7 – Medically Monitored Intensive Inpatient Services

Level 3.7 Medically Monitored Intensive Inpatient Services is a medically monitored intensive inpatient residential treatment program with 24-hour nursing care, 16-hour counseling and physician availability.

Level 4 – Medically Managed Intensive Hospital/Inpatient Treatment

Level 4 Medically Managed Intensive Hospital/Inpatient Treatment provides

patients suffering from severe withdrawal or medical, emotional, or behavioral

problems with 24-hour care from addiction clinicians at an inpatient facility.