Levels of care explained:
detox through outpatient
Every addiction treatment program fits into a level of care. The level determines how many hours a day you receive treatment, whether you live at the facility, and what TRICARE requires before covering it. This guide walks through each level in plain terms.
Why levels of care matter
Treatment for substance use disorder is not one-size-fits-all. A person who has been drinking heavily for twenty years and is at risk of alcohol withdrawal seizures needs something very different from someone who recently developed a problem with prescription medication and is otherwise stable. The level-of-care framework exists to match the intensity of treatment to the actual clinical need.
TRICARE uses this framework too. Before authorizing residential treatment or a partial hospitalization program, your provider must document that the level of care is clinically necessary. Understanding what each level involves helps you have a more informed conversation with your treatment team and your TRICARE case manager.
Providers use the ASAM Criteria (American Society of Addiction Medicine) to guide placement decisions. The assessment looks at six dimensions: your withdrawal risk, medical health, mental health, readiness to change, relapse risk, and your living environment. The result determines the starting level of care and guides transitions as your situation changes.
The five levels of care
These are listed from most intensive to least intensive. Most people do not start at the bottom and work up. They enter at the level that matches their clinical need, then step down as they stabilize.
Medical detox (withdrawal management)
Medically supervised management of withdrawal from alcohol, opioids, benzodiazepines, or other substances. You are monitored around the clock by nursing and medical staff. Medications are used to reduce withdrawal symptoms and prevent complications such as seizures.
Detox is not treatment for addiction. It stabilizes you physically so that the real work of treatment can begin. Most people who complete detox move directly into residential or partial hospitalization treatment. Leaving after detox without continuing care is associated with high relapse rates.
TRICARE covers medical detox. Prior authorization is required before admission. Active-duty members pay nothing out of pocket. TRICARE Select beneficiaries pay their standard inpatient cost-sharing after the deductible.
Residential treatment
You live at the treatment facility for the duration of the program, typically 28 to 90 days. Days are highly structured: individual therapy, group therapy, psychoeducation, family sessions, and recovery support. The controlled environment removes exposure to substances and gives your brain and nervous system time to stabilize.
Residential treatment is appropriate when someone cannot maintain sobriety safely in their current living environment, or when the intensity of their use or co-occurring mental health conditions require full immersion in care. For many veterans dealing with PTSD alongside addiction, residential is the right starting point.
TRICARE covers residential treatment. Prior authorization is required. Coverage rules differ by plan type. Confirm your specific cost-share with your TRICARE plan before admission. Verify that the facility is in-network to protect your benefit.
Partial hospitalization program (PHP)
PHP is day treatment. You attend structured programming for 20 or more hours per week, typically five days a week for six to eight hours a day, then return home or to a sober living environment in the evenings. It provides intensive clinical support without requiring an overnight stay.
PHP is often used as a step-down from residential treatment. It can also be appropriate as a starting level when someone is medically stable and has a safe, supportive living situation but still needs a high level of clinical structure each day.
TRICARE covers PHP when prior-authorized and clinically justified. It is covered as an outpatient benefit by most plans. Verify cost-sharing details with your plan before starting.
Intensive outpatient program (IOP)
IOP involves nine or more hours of structured treatment per week, typically spread across three days. You attend group therapy sessions, individual counseling, and skills-building groups, then return to your normal living environment. Many IOP programs run in the morning or evening to allow people to work or care for family.
IOP is appropriate when someone has achieved enough stability that they no longer need daily all-day structure, but still need significantly more support than weekly outpatient therapy. It is a common step-down from PHP and a common exit point for people who started at residential treatment.
TRICARE covers IOP as an outpatient mental health and substance use benefit. Active-duty members pay nothing. Other beneficiaries pay their standard outpatient cost-share. Confirm network status of the IOP provider before starting.
Standard outpatient treatment
Fewer than nine hours of structured treatment per week, typically one to two individual or group sessions. Appropriate for people who have stabilized significantly, have strong support systems, and are in a safe living environment. Often combined with medication-assisted treatment (MAT) and peer support programs.
Standard outpatient is also the level most people continue with after completing higher levels of care. Recovery does not end when intensive treatment ends. Ongoing outpatient therapy, support groups, and continuing care planning are important parts of maintaining long-term recovery.
TRICARE covers outpatient mental health and substance use visits. Active-duty members pay nothing. Other beneficiaries pay their standard outpatient cost-share per visit.
How stepping down through treatment works
The goal of treatment is to move people from the most intensive level of care they need toward independence, in a planned and supported way. This is called the continuum of care, and moving through it in steps is considered clinical best practice.
A common trajectory for someone with severe alcohol use disorder looks like this: a week of medical detox, followed by 28 to 30 days of residential treatment, then four to six weeks of PHP as they transition back into home life, then three months of IOP as they build stability, then ongoing weekly outpatient therapy and a support group indefinitely.
Not everyone follows this exact path. Some people enter at IOP and never need a higher level. Others need to return to a higher level of care after a relapse. The ASAM Criteria guide placement decisions at each transition point, and your treatment team and TRICARE case manager are involved in authorizing each step.
TRICARE requires prior authorization for inpatient, residential, and PHP levels. Starting treatment without authorization can result in the claim being denied. Call the number on the back of your insurance card or contact TRICARE directly at 1-800-874-2273 before admission at each new level.
What about co-occurring mental health conditions?
Many people entering addiction treatment also carry diagnoses such as PTSD, depression, or anxiety. These are called co-occurring conditions, and they are the rule rather than the exception among veterans seeking addiction treatment.
Treatment programs that address both conditions simultaneously tend to produce better outcomes than programs that treat them separately or sequentially. When evaluating treatment programs, look for ones that explicitly offer dual-diagnosis or co-occurring treatment, where a clinical team is equipped to address both the addiction and the underlying mental health condition at the same time.
TRICARE covers treatment for both substance use disorders and mental health conditions. The same level-of-care framework applies to mental health treatment as to addiction treatment. Your TRICARE case manager can help coordinate coverage for integrated dual-diagnosis care.
Medication-assisted treatment across levels of care
Medication-assisted treatment (MAT) uses FDA-approved medications, such as buprenorphine, naltrexone, or methadone, alongside counseling and behavioral therapy to treat opioid or alcohol use disorder. MAT is not a substitute for full treatment. It works best when integrated into a broader care plan.
MAT can be used at any level of care and is often continued across the continuum as someone steps down. TRICARE covers FDA-approved MAT medications when prescribed by an authorized provider. Buprenorphine can be prescribed in office-based settings, including primary care and outpatient treatment settings, which makes it accessible during IOP and standard outpatient phases.
If you are interested in MAT as part of your treatment plan, raise it early in the intake and assessment process so your care team can integrate it appropriately.
Questions about levels of care
. This page provides general educational information about levels of addiction care and TRICARE coverage. It is not medical or insurance advice. Confirm your specific coverage details with TRICARE directly at tricare.mil or 1-800-874-2273.