A free guide from Cima Find Care

Does insurance cover rehab? Drug and alcohol treatment coverage in Texas

Usually, yes. In Texas, every fully insured health plan must include substance use treatment, Marketplace plans cover it as an essential health benefit, and Texas Medicaid, CHIP, Medicare, TRICARE and the VA cover it too. What your plan pays for, and for how long, depends on medical necessity, prior approval and whether the program is in your network. Here's how to find out before you start, and what to do if the answer is no.

Updated October 27, 2026. General information, not medical, legal or insurance advice.

If you need help now: call 911 in an emergency. In a mental health or substance use crisis, call or text 988, any time. SAMHSA's National Helpline, 1-800-662-4357, is free, confidential and open 24/7 for treatment referrals, including for people without insurance.

The short answer, by coverage

Your coverage	Does it cover rehab?
Marketplace or individual plan	Yes. Substance use treatment is an essential health benefit, with no yearly or lifetime dollar limit.
Employer plan, fully insured (card says TDI or DOI)	Yes. Texas requires every fully insured plan, small or large group, to include substance use benefits, on par with medical care.
Employer plan, self-funded	Not required to by Texas law. If the plan does cover it, federal parity rules apply. Check your plan documents.
Texas Medicaid	Yes: assessment, outpatient counseling, detox, residential treatment and medication, with no copays.
CHIP	Yes, for children, with no copays for mental health and substance use office visits or residential treatment.
Medicare	Yes: hospital stays (Part A) and outpatient care, IOP and PHP (Part B).
TRICARE or VA	Yes, for those who qualify.
No insurance	Texas funds treatment for people whose income qualifies. See No insurance.

What "rehab" covers: detox, inpatient and outpatient

"Rehab" can mean any level of substance use treatment. Plans cover each level separately, and usually need approval for the intensive ones.

Level	What it is	What plans usually ask for
Detox (withdrawal management)	Medical care to get through withdrawal safely, outpatient or 24-hour	Prior authorization, often within days of admission
Inpatient or residential rehab	Living at a program or hospital for treatment	Prior authorization and regular reviews of your progress
PHP (partial hospitalization)	20 or more hours a week; you sleep at home	Usually prior authorization
IOP (intensive outpatient)	9 or more hours a week, often evenings	Often prior authorization
Outpatient counseling	Weekly individual or group sessions	Often no approval, or only after a set number of visits
Medication	FDA-approved medication for alcohol or opioid use disorder	Varies by drug and plan

Alcohol rehab and drug rehab are covered the same way: both are substance use disorder treatment. More on the levels: IOP vs PHP vs weekly therapy and alcohol detox in Texas. Mental health programs are covered under the same rules.

The ACA's essential health benefits

Under the Affordable Care Act, individual and small-group plans must cover ten essential health benefits, and mental health and substance use disorder services, including behavioral health treatment, are one of them. HealthCare.gov says Marketplace plans:

Cover substance use treatment, though the exact benefits depend on your state and plan.
Can't refuse you or charge you more because of a substance use or mental health condition you already have.
Can't put a yearly or lifetime dollar limit on these services.

Large-group and self-funded employer plans don't have to cover the essential health benefits. In Texas, though, fully insured large-group plans must include substance use benefits under state law.

The parity law

The federal Mental Health Parity and Addiction Equity Act says that if a plan covers substance use treatment, its copays, deductibles, day or visit limits and approval rules can't be stricter than for comparable medical and surgical care. Texas has its own parity law for state-regulated plans, enforced by the Texas Department of Insurance (TDI), and Texas Medicaid and CHIP follow parity too.

You can ask your plan for the medical necessity criteria it uses and the reason for any denial. Our guide to using your insurance in Texas explains who regulates your plan and how parity works.

Does Medicaid cover rehab in Texas?

Yes. Texas Medicaid's substance use benefit covers, at licensed chemical dependency treatment programs:

Assessment and outpatient counseling, individual and group. These don't need prior approval up to a yearly limit.
Outpatient and residential detox, with prior authorization.
Residential treatment, with prior authorization.
Medication-assisted treatment.

Texas Medicaid members don't pay copays, and HHSC reports no yearly or lifetime dollar limits. Most members are in a health plan (STAR, STAR+PLUS and others), so call the member services number on your card and ask for in-network programs. Some health plans also cover PHP and IOP in place of a hospital stay.

CHIP covers substance use treatment for children, and since July 1, 2022, it has charged no copays for mental health and substance use office visits or residential treatment.

Not on Medicaid? Most adults 19 to 64 who aren't pregnant, raising a child or disabled can't get Texas Medicaid. See how to apply for Texas Medicaid or CHIP and STAR, STAR+PLUS and CHIP explained. Teens: teen drug and alcohol treatment in Texas.

Does Medicare cover rehab?

Part A covers inpatient care in a general or psychiatric hospital, including for alcohol or drug use. Stays in a psychiatric hospital are limited to 190 days in your lifetime.
Part B covers outpatient substance use care, intensive outpatient (IOP) and partial hospitalization (PHP), and opioid treatment programs. After the Part B deductible you generally pay 20% of the approved amount.
Medicare Advantage plans have their own networks and approval rules: call yours.

Many residential programs aren't hospitals, so ask any program whether Medicare will pay for your stay there. Our insurance guide covers Medicare costs and free Medicare counseling in Texas.

TRICARE and VA

TRICARE may cover inpatient and outpatient substance use treatment, including detox, residential care, PHP, IOP and medication. Non-emergency inpatient care needs prior approval.
VA health care offers enrolled veterans medically managed detox, outpatient and intensive outpatient counseling, medication and residential rehab programs.

How long does insurance cover rehab?

There's usually no set number of days. Plans pay as long as the care is medically necessary: needed for your condition and in line with accepted medical standards.

Approval comes in blocks. A plan often approves some days, then reviews your progress with the program before approving more.
Limits must meet parity. A plan's day or visit limits for substance use care can't be stricter than for comparable medical care.
When the plan stops approving a level, ask what it will cover next, such as IOP after residential, so there's no gap in care.

How to check your benefits

Call the member services or behavioral health number on your card (a separate behavioral health number may mean a carve-out company manages this benefit). Ask:

Does my plan cover substance use treatment at this level: detox, residential, PHP, IOP or outpatient?
Is this program in network for my plan? If not, do I have out-of-network benefits?
Does it need prior authorization, and who requests it?
What will I pay per day or per visit? How much of my deductible and out-of-pocket maximum is left?
Is there a limit on days or visits?
Are medications for alcohol or opioid use disorder covered?

Write down the date, the rep's name and the reference number. Many programs will check your benefits for you too, but call yourself to be sure. Our guide to calling your plan explains deductibles, coinsurance and networks.

Prior authorization

Prior authorization (also called preauthorization or precertification) is the plan's OK before you get a service. For intensive care, the program usually sends your assessment to the plan, often scored against ASAM criteria.

Approval isn't a promise to pay. The plan can still review the claim.
Texas Medicaid considers a request for detox or residential treatment sent within 3 business days after admission, so you don't have to wait to be admitted.
Each level usually needs its own approval, so ask again when you step down from residential to PHP or IOP.

If your plan says no

Ask for the denial, the reason and the criteria used, in writing.
File an internal appeal, then ask for an independent external review if needed. Urgent cases move faster.

Free help: the Texas Department of Insurance Help Line, 800-252-3439, for plans it regulates; the U.S. Department of Labor, 1-866-444-3272, for employer plans; and the HHS Ombudsman, 800-252-8154, for Medicaid and CHIP behavioral health. Step by step: if your plan says no.

No insurance

State-funded treatment: Texas HHSC pays for detox, residential and outpatient treatment and medication for Texans whose income qualifies. Some people pay part. Start with your local OSAR (Outreach, Screening, Assessment and Referral) program: call 2-1-1.
Sliding-scale fees: ask programs whether they set fees by income.
Good Faith Estimate: paying yourself, you have a right to a written estimate first (how it works).
Get covered: see whether you or your children qualify for Medicaid or CHIP, or a Marketplace plan at HealthCare.gov.

Find programs that take your coverage

Counted from the Texas programs on Cima Find Care, from SAMHSA's FindTreatment.gov and the programs' own records. Programs change what they accept, so always confirm with your plan.

Level of care	Programs in Texas	Accept Medicaid	Accept Medicare	Accept private insurance	Sliding-scale fee
Detox	184	119	86	176	50
Residential	219	149	98	195	72
PHP (partial hospitalization)	141	80	49	140	34
IOP (intensive outpatient)	223	141	83	193	91

Counted from Cima Find Care's Texas records as of 2026-10-27: one program per organization in each city, from SAMHSA's FindTreatment.gov and the programs' own websites. A program counts when any of its locations lists it.

By plan: treatment by insurance plan, such as Blue Cross Blue Shield, Aetna, Cigna, UnitedHealthcare and Ambetter. Medicaid by city: Houston, Dallas, San Antonio and Austin. Or search Texas providers by insurance, or answer four quick questions to see where to start. Helping someone else? Read how to help an alcoholic. More guides are on our guides page.

Questions people ask

Does insurance cover rehab for alcohol?

Yes, the same way it covers drug rehab: both are substance use disorder treatment. Your plan's rules on networks, approval and cost apply.

Does insurance cover inpatient rehab?

Most plans do when it's medically necessary, with prior authorization. The plan usually approves a number of days and then reviews your progress. Ask whether the program is in network and what you'll owe per day.

Does insurance cover outpatient rehab and IOP?

Yes, in most plans. IOP and PHP often need prior authorization; weekly counseling often doesn't.

Does Blue Cross, Cigna or Aetna cover rehab?

Their plans generally include substance use treatment, but benefits differ from plan to plan, even within one company. Call the number on your card, and see which Texas programs list your insurer on our insurance pages.

Does insurance cover mental health rehab?

Yes. Mental health treatment is also an essential health benefit and is covered under the same parity rules. See IOP vs PHP for mental health programs.

Will insurance pay for an out-of-state rehab?

Only as your plan's network rules allow. HMO and EPO plans usually cover only in-network care except emergencies, and out-of-network care costs more under a PPO. Ask your plan before you travel.