Partial Hospitalization Program (PHP) Guide

A PHP is day treatment with at least 20 hours a week of clinical care. Learn how ASAM Level 2.5 works, who it fits, and how insurance covers it.

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Quick answer

A partial hospitalization program (PHP) is a structured day-treatment level of care. ASAM's Level 2.5 provides at least 20 hours of clinical services each week, with access to psychiatric, medical, and lab services. You live at home and attend treatment most days. It fits people who need more than standard outpatient care but not a 24-hour setting.

A partial hospitalization program sounds like you are partly in a hospital. You are not. A PHP, also called day treatment, is treatment you attend for most of the day and then go home. It is one of the most common middle steps in addiction care: more than a weekly appointment, less than living at a program. If you need real structure but you have somewhere safe to sleep, a PHP can be the level that fits.

If withdrawal has caused a seizure, severe confusion, or trouble breathing, call 911. For a mental health crisis, call or text 988.

What ASAM Level 2.5 means

The American Society of Addiction Medicine sorts treatment into four broad levels, from outpatient care (Level 1) to medically managed inpatient care (Level 4). A PHP sits at Level 2.5: intensive outpatient or high-intensity outpatient treatment.

ASAM's overview of the adult criteria describes the ".5" levels as having a greater focus on psychotherapy. For Level 2.5 specifically, that means at least 20 hours of clinical services each week. State licensing documents built on the same standard describe a PHP, or day treatment, as a structured program that generally provides 20 or more hours of clinically intensive programming per week, as written into your treatment plan.

Another feature sets Level 2.5 apart from lower outpatient care: ASAM notes that these programs typically have direct access to psychiatric, medical, and laboratory services. That matters if you need daily monitoring for a co-occurring mental health condition or a medical issue, but you do not need a 24-hour bed.

A week in a PHP

Expect several hours a day, most days of the week. A typical schedule mixes group therapy, individual therapy, and education about substance use and coping skills, with medication management and family work as needed. The licensing standard lists individual and group counseling, medication management, family therapy, educational groups, and other therapies as part of the service.

Because you go home at night, the skills you practice during the day meet your real kitchen, your real family, and your real stress by evening. That is both the strength and the challenge of a PHP. You learn in the middle of your life, with the program wrapping around you during the day. It helps to have a living situation where you can actually sleep, eat, and stay away from substances when the program lets out.

Where a PHP fits in the path

Think of levels of care as a set of steps, not a ladder of seriousness. A PHP often appears in two places.

It can be a step down from residential or inpatient care. When the 24-hour risk has eased, day treatment lets you test your footing at home while keeping a full week of support. It can also be a starting point for someone whose needs are more than standard outpatient care can hold, but who does not need to live at a program.

ASAM's guiding idea is the least intensive level that is still safe and effective, reassessed as your needs change. If the picture shifts, a good program moves you up or down rather than holding you at one rung. A program that offers only one level cannot do that.

Paying for day treatment

Most health plans are covered by the Mental Health Parity and Addiction Equity Act of 2008, or MHPAEA. CMS explains that for covered substance use disorder benefits, plans and insurers generally cannot apply financial requirements or treatment limits that are more restrictive than the predominant ones applied to medical or surgical care. Non-numeric limits, such as prior authorization, must be comparable and applied no more stringently.

Two cautions. The law does not require a plan to cover substance use disorder treatment, and it does not promise a number of PHP hours or weeks. Medical necessity still decides. When you call your insurer, ask whether partial hospitalization is covered, whether prior authorization is required, and how the plan defines the hours it will approve. If you have Medicaid, rules vary by state.

A next step you can take today

Search for a day-treatment program near you at FindTreatment.gov, or call SAMHSA's National Helpline at 1-800-662-HELP (4357), free and confidential, 24/7.

Call or text (800) 653-9376 to talk through whether a PHP fits your situation, and what to ask a program before you start. The call is free, and the referral service is paid for by treatment providers.

If this is an emergency, call 911. For a mental health or substance use crisis, call or text 988.

Sources

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Questions about Partial Hospitalization Program (PHP)

What is a partial hospitalization program?

A PHP, also called day treatment, is an intensive outpatient level of care that runs most of the day, several days a week, while you sleep at home. ASAM places it at Level 2.5, providing at least 20 hours of clinical services per week. It offers more structure than a standard outpatient visit or an intensive outpatient program.

How is a PHP different from inpatient or residential care?

The main difference is where you sleep. At a PHP you go home at the end of the day. Inpatient (ASAM Level 4) and residential (Level 3) care are 24-hour settings. A PHP can still include daily monitoring and close coordination with psychiatric and medical services, but it does not house you.

How many hours a week is a PHP?

ASAM's overview of the adult criteria states that Level 2.5 programs provide at least 20 hours of clinical services per week. Providers often schedule that across four or five days. The exact schedule is set by the program and your treatment plan.

Who is a PHP right for?

It can fit someone stepping down from a 24-hour setting, or someone whose symptoms need more than a weekly session but who has a safe place to live. ASAM notes that Level 2.5 programs have direct access to psychiatric, medical, and lab services, which helps when daily monitoring or management is needed but can be handled in a structured outpatient setting.

Does insurance cover a PHP?

Often, when it is medically necessary. Under the federal parity law (MHPAEA), plans that cover substance use disorder benefits generally cannot apply limits to those benefits that are more restrictive than for medical or surgical care, including prior authorization. The law does not require coverage, so confirm medical necessity with your insurer.