ASAM levels of care explained

The ASAM Criteria, published by the American Society of Addiction Medicine, define a continuum of care for substance use disorder (SUD) treatment built around four broad levels: Level 1 (outpatient), Level 2 (intensive outpatient/high-intensity outpatient), Level 3 (residential), and Level 4 (medically managed inpatient), plus a recovery residence option that can pair with Levels 1 and 2 (asam.org/asam-criteria). Each level has numbered sublevels (for example 2.1, 2.5, 3.1, 3.5, 3.7) that reflect increasing intensity of service, staffing, and medical oversight. Placement into a level is not diagnosis-based; it comes from a standardized, six-dimension multidimensional assessment that matches the patient to the least intensive level of care that can still safely meet their needs (asam.org, about the ASAM Criteria).

What is the ASAM Criteria and who uses it

The ASAM Criteria is "the most widely used and comprehensive set of standards for placement, continued service, and transfer of patients with addiction and co-occurring conditions." It was first published in 1991 (as the ASAM Patient Placement Criteria), renamed The ASAM Criteria with the Third Edition in 2013, and updated to the Fourth Edition in late 2023 (asam.org, about the ASAM Criteria).

Four groups rely on it, per ASAM:

1. Clinicians conduct the multidimensional assessment, make level-of-care recommendations, and build the individualized treatment plan with the patient.
2. Payers and managed care organizations license the Dimensional Admission Criteria to apply as medical necessity criteria for coverage decisions.
3. Policymakers use the Criteria as the foundation for state licensure, regulation, and Medicaid SUD benefit design.
4. Patients and families use the six dimensions to understand how different life areas (medical, psychological, social) interact and affect treatment options (asam.org, about the ASAM Criteria).

CMS does not itself require states to use the ASAM Criteria, but most states with Medicaid Section 1115 SUD demonstrations have adopted it as their assessment and level-of-care framework (medicaid.gov, ASAM Criteria Fourth Edition webinar slides, Dec. 8, 2025).

The six dimensions behind every placement decision

Before a level of care is assigned, ASAM requires a standardized assessment across six dimensions. The Fourth Edition dimensions are:

1. Intoxication, Withdrawal, and Addiction Medications
2. Biomedical Conditions
3. Psychiatric and Cognitive Conditions
4. Substance Use-Related Risks
5. Recovery Environment Interactions
6. Person-Centered Considerations (new in the Fourth Edition; covers barriers to care, social determinants of health, patient preference, and need for motivational enhancement)

This reorders and relabels the Third Edition's six dimensions: the Third Edition's Dimension 4 ("Readiness to Change") is now folded into each dimension rather than treated as a standalone axis, and its Dimension 6 ("Recovery/Living Environment") became the Fourth Edition's Dimension 5 ("Recovery Environment Interactions"). The Fourth Edition's Dimension 6 (Person-Centered Considerations) is new content, not a renamed older dimension (medicaid.gov webinar slides, Dec. 8, 2025). Bolded subdimensions inform the level-of-care recommendation and initial treatment plan; the remaining subdimensions still inform ongoing treatment planning (asam.org/asam-criteria).

The levels of care, from least to most intensive

Level 1: Outpatient

Fourth Edition sublevels are 1.0 (Long-Term Remission Monitoring), 1.5 (Outpatient Therapy), and 1.7 (Medically Managed Outpatient) (asam.org/asam-criteria). Under the still widely referenced Third Edition definitions used in many current state Medicaid manuals, Level 1 outpatient services run less than 9 hours weekly for adults (less than 6 hours for adolescents) and are delivered by credentialed counselors, social workers, psychologists, and physicians in office, clinic, or school-based settings (medicaid.gov ASAM resource guide, 2017).

Level 2: Intensive outpatient / high-intensity outpatient

Fourth Edition sublevels are 2.1 (Intensive Outpatient), 2.5 (High-Intensity Outpatient), and 2.7 (Medically Managed Intensive Outpatient) (asam.org/asam-criteria). Under the Third Edition structure, Level 2.1 intensive outpatient programs provide 9-19 structured hours weekly for adults (6-19 for adolescents), while Level 2.5 partial hospitalization programs provide 20 or more clinically intensive hours weekly with direct access to psychiatric, medical, and laboratory services for patients with unstable medical or psychiatric conditions (medicaid.gov ASAM resource guide, 2017).

Level 3: Residential

Fourth Edition sublevels are 3.1 (Clinically Managed Low-Intensity Residential), 3.5 (Clinically Managed High-Intensity Residential), and 3.7 (Medically Managed Residential) (asam.org/asam-criteria). This collapsed the Third Edition's four residential sublevels (3.1, 3.3, 3.5, 3.7), where 3.3 was a population-specific high-intensity track for adults with significant cognitive impairment. All Level 3 programs are staffed 24 hours a day in a structured residential setting, but the level of physician direction differs by sublevel: 3.1 and 3.5 are "clinically managed," meaning care is directed by nonphysician addiction specialists with physician availability for consultation and emergencies, while 3.7 is "medically managed residential" (the Fourth Edition term; the Third Edition called this sublevel "medically monitored"), meaning an interdisciplinary team works under a licensed physician's direction with 24-hour nursing coverage (medicaid.gov ASAM resource guide, 2017).

Level 4: Medically managed inpatient

Level 4 is for patients whose biomedical, emotional, behavioral, or cognitive conditions are severe enough to require primary medical care and 24-hour nursing, with a licensed physician making daily direct, shared treatment decisions. It is delivered in an acute care general hospital, acute psychiatric hospital, psychiatric unit, or licensed addiction treatment specialty hospital, and length of stay is typically limited to stabilizing acute symptoms before transition to a lower level of care (medicaid.gov ASAM resource guide, 2017).

Level 0.5 and withdrawal management (legacy Third Edition terms)

The Third Edition also defined Level 0.5 (Early Intervention: SBIRT and risk-reduction counseling for people not yet diagnosed with a SUD) and five separate withdrawal management levels, since detox services are frequently delivered alongside, but coded separately from, the core treatment levels (medicaid.gov ASAM resource guide, 2017). ASAM's published Fourth Edition continuum does not list a separate Level 0.5; its Level 1.0 sublevel is labeled "Long-Term Remission Monitoring," a distinct, ongoing-monitoring function within outpatient care rather than a documented direct replacement for the Third Edition's pre-treatment early intervention services (asam.org/asam-criteria).

The three tiers of clinical oversight

Regardless of edition, ASAM uses three consistent terms to describe how medically involved a level of care is:

(Definitions per medicaid.gov ASAM resource guide, 2017.)

Why the edition transition matters for documentation right now

States are mid-transition between the Third Edition's numbering (which included a fourth residential sublevel, 3.3, not carried into the current edition) and the Fourth Edition's four-broad-level structure released in late 2023 (medicaid.gov webinar slides, Dec. 8, 2025). Kentucky Medicaid transitioned to the Fourth Edition on July 1, 2025; Colorado was still actively managing its transition as of the December 2025 webinar, citing provider readiness, licensing structure changes, and financial impact to the state as the main challenges (medicaid.gov webinar slides, Dec. 8, 2025). Practically, this means a provider's EHR needs to capture and report level-of-care data in whichever numbering scheme the patient's state Medicaid program or payer currently recognizes, and be ready to remap as more states complete their own transitions.

Why the EHR needs to capture the ASAM assessment, not just the level

A level-of-care assignment is a conclusion; payers and auditors want to see the assessment that produced it. Because payers license the Dimensional Admission Criteria to determine "medical necessity" for coverage, and because policymakers write state licensure and 1115 demonstration rules directly around ASAM's provider and service standards for each level (asam.org, about the ASAM Criteria), documentation that only records a level of care ("Level 3.5") without the underlying six-dimension assessment leaves a gap that utilization review and audits will flag. An EHR built for SUD treatment needs to:

1. Capture the multidimensional assessment across all six current dimensions at admission.
2. Link the assessment findings to the specific level-of-care recommendation the clinician selected.
3. Re-apply transition and continued-service criteria at each reassessment, so the record shows why a patient moved to a more or less intensive level.
4. Store which edition's numbering (Third or Fourth) and which state's crosswalk applies, since payer authorization systems are not all on the same edition at the same time.

Frequently asked questions

How many ASAM levels of care are there?

The Fourth Edition organizes care into four broad levels: Level 1 (outpatient), Level 2 (intensive outpatient/high-intensity outpatient), Level 3 (residential), and Level 4 (inpatient), each with numbered sublevels, plus an optional recovery residence add-on for Levels 1 and 2 (asam.org/asam-criteria). Many current state Medicaid manuals still use the Third Edition's broader Levels 0.5 through 4, which included four residential sublevels (3.1, 3.3, 3.5, 3.7) instead of three (medicaid.gov ASAM resource guide, 2017).

What is ASAM Level 3.7?

ASAM Level 3.7 is a residential level of care for patients whose biomedical, emotional, behavioral, or cognitive conditions require highly structured 24-hour services with direct evaluation, observation, and medically monitored treatment, but do not require the daily physician-directed care of Level 4. It's staffed by an interdisciplinary team including addiction-credentialed physicians available on-site 24 hours daily and registered nurses (medicaid.gov ASAM resource guide, 2017). In the Fourth Edition, this maps to "3.7: Medically Managed Residential" (asam.org/asam-criteria).

Does Medicaid require the ASAM Criteria?

CMS does not itself mandate that states use the ASAM Criteria, but most states running Medicaid Section 1115 SUD demonstrations have adopted it as their required assessment and level-of-care framework (medicaid.gov webinar slides, Dec. 8, 2025). States implement it through licensure standards, regulations, provider manuals, and managed care contracts rather than a single federal rule (medicaid.gov ASAM resource guide, 2017).

What's the difference between "clinically managed" and "medically managed" care?

Clinically managed care is directed by nonphysician addiction specialists (appropriate for Levels 3.1 and 3.5), while medically managed care means a licensed physician provides daily direct treatment and shared decision-making with 24-hour nursing (Level 4). Level 3.7 (medically managed residential in the Fourth Edition, "medically monitored" in the Third) sits between the two, with an interdisciplinary team, 24-hour nursing, and physician direction, but not the daily physician-delivered care of Level 4. (medicaid.gov ASAM resource guide, 2017)

Has the ASAM Criteria changed recently?

Yes: the Fourth Edition was released in late 2023, reordering the six assessment dimensions, adding a new Person-Centered Considerations dimension, and consolidating the level-of-care continuum into four broad levels with fewer sublevels than the 2013 Third Edition. (asam.org, about the ASAM Criteria; medicaid.gov webinar slides, Dec. 8, 2025) States are transitioning at different paces: Kentucky moved to the Fourth Edition on July 1, 2025, while other states were still mid-transition as of the December 2025 CMS webinar.

Who assesses a patient and assigns their ASAM level of care?

Clinicians (physicians, psychologists, social workers, and credentialed addiction counselors) conduct the standardized multidimensional assessment and apply the Dimensional Admission Criteria to recommend a level of care, which payers and managed care organizations then use to determine coverage. (asam.org, about the ASAM Criteria)

Where Ease Health fits

Ease Health is an AI-native, unified CRM, EHR, and RCM platform built from the ground up for behavioral health, supporting levels of care including OP, IOP, PHP, Residential, Detox, PRTF, MAT, OTP, OBOT, Psychiatry, Telehealth, Group Therapy, Case Management, and Peer Support. Because the platform is ASAM-capable, clinicians can capture the six-dimension assessment directly in the EHR and link it to the level-of-care recommendation, rather than tracking the assessment in one system and the placement decision in another. The CRM side of the platform handles referrals, admissions pipeline, census, and eligibility checks natively, and the platform supports 42 CFR Part 2 workflows for SUD records and UB-04 institutional billing, so the assessment, the placement, and the authorization paperwork it supports live in one connected system rather than requiring a separate integration.

Sources

• ASAM Criteria overview, asam.org
• About the ASAM Criteria, asam.org
• Overview of Substance Use Disorder (SUD) Care Clinical Guidelines, Medicaid Innovation Accelerator Program, medicaid.gov (2017)
• ASAM Criteria Fourth Edition: Impacts on States with Medicaid Section 1115 Demonstrations, webinar slides, medicaid.gov (Dec. 8, 2025)