Levels of care, explained
"Level of care" simply means how intensive the treatment is and how much structure it provides. Care is meant to be matched to need — more intensive when risk is high, stepping down as someone stabilizes. The most widely used framework in the U.S. is The ASAM Criteria.
Medical detox (withdrawal management)
The body is helped through withdrawal safely. This is a first step, not treatment by itself — it clears the immediate physical danger so the real work can begin. For alcohol, benzodiazepines, and barbiturates, supervised detox can be medically necessary because withdrawal can cause seizures.
Residential / inpatient
A person lives at the facility with 24/7 support, typically for a few weeks to a few months. It removes day-to-day triggers and is often used when home isn't stable or when earlier outpatient attempts didn't hold.
Partial hospitalization (PHP)
A structured day program — often 5–6 hours a day, 5 days a week — while the person sleeps at home or in sober housing. It's a step down from residential or a step up from outpatient.
Intensive outpatient (IOP)
Usually 9–19 hours of treatment a week across several sessions, scheduled so people can keep working or caring for family. Group therapy is typically the backbone.
Standard outpatient
Regular but less frequent sessions — for example weekly individual or group therapy, and medication management. Often where people continue after a more intensive phase.
How the right level gets chosen
You're not expected to diagnose your own level. A clinician (or the free SAMHSA Helpline) does an assessment that weighs things like: how the body reacts when the substance stops, other medical or mental-health conditions, past treatment, motivation, and how safe and supportive the living situation is. ASAM organizes these into six "dimensions," and the answers point toward a level.
Two principles worth remembering: care should step up or down as needs change (it's not one-and-done), and length of stay matters — research consistently links staying in treatment long enough with better outcomes.
Where medication and therapy fit
Levels of care describe the setting and intensity. Inside almost every level, the active ingredients are usually therapy and — for opioid and alcohol use disorders especially — medication. A residential program and an outpatient program might use the same therapies; what differs is structure and supervision.