Quick answer
Aetna Better Health of Kentucky is one of the Medicaid managed care plans Kentucky lets members choose. Its behavioral health benefit covers substance use rehabilitation and residential services, inpatient and outpatient care, intensive outpatient and partial hospitalization. Prior authorization is now required for many addiction services, and all Kentucky Medicaid MCOs must offer the same standard benefits.
Published: 2026-10-26 Updated: 2026-10-26
If Aetna Better Health of Kentucky is the name on your Medicaid card, you already cleared the hardest gate — you have coverage. The next question is narrower and more practical: will this plan actually pay for detox or rehab, and what has to happen before you walk in the door. The honest answer is yes on the benefit; the part that trips people up is the prior authorization that now sits in front of much of the addiction treatment.
Does Aetna Better Health of Kentucky cover rehab and detox?
It depends on the level of care and on medical necessity, but the behavioral health benefit is built to include substance use treatment. The plan's member handbook lists covered services that reach across the treatment spectrum: substance use rehabilitation and residential services, inpatient behavioral health services, intensive outpatient program services, partial hospitalization, outpatient behavioral health services, community mental health center services, in-home behavioral health services, and psychiatric residential treatment facility services. Higher levels of care are the ones most likely to need approval before admission.
What the benefit covers
Aetna Better Health of Kentucky describes behavioral health care as treatment for mental health that includes alcohol and substance use services. Pulling the covered services together, the plan's published benefit spans:
- Substance use rehabilitation and residential services — structured treatment where you live at the program
- Inpatient behavioral health services — hospital-based care, including withdrawal management
- Intensive outpatient program (IOP) services and partial hospitalization program (PHP) services — step-down care that keeps you connected to treatment without a full residential stay
- Outpatient behavioral health services — counseling and therapy you attend on a schedule
- Community mental health center services, in-home behavioral health services, and psychiatric residential treatment facility services
Mental health treatment, medication evaluation and case management sit alongside these services. If you are dealing with withdrawal from alcohol or benzodiazepines, stopping suddenly can be dangerous and needs medical supervision — ask about detox or withdrawal management rather than trying to quit on your own.
Prior authorization is the part to get right
This is the change worth knowing. Effective June 25, 2025, Aetna Better Health of Kentucky requires prior authorization for behavioral health services, including substance use disorder services, for all members — adults, adolescents and children, including those in the Supporting Kentucky Youth program. It applies to new and ongoing treatment in both outpatient and inpatient settings. Substance use residential services already required authorization and continue to.
In plain terms: before you are admitted, the treatment provider sends the plan the clinical picture — the assessment, the level of care requested, the treatment plan — and the plan decides. If a program tells you it is handled, ask what was submitted and what the determination was. If the request is for a residential stay, be ready for the plan to review continued days as you go.
Kentucky Medicaid: one benefit, several plans
Kentucky's Department for Medicaid Services (DMS) uses managed care organizations to cover most Medicaid members, and it offers five choices: Aetna Better Health of Kentucky, Humana Healthy Horizons in Kentucky, Passport Health Plan by Molina Healthcare, UnitedHealthcare Community Plan of Kentucky, and WellCare of Kentucky.
Two facts matter here:
- All MCOs must provide the same standard Medicaid benefits and coverage. MCOs can add extra "value-added" benefits, but the core package does not change from plan to plan. So you are not choosing whether addiction treatment is covered; you are choosing a network and a support system.
- You can change your MCO. Kentucky no longer limits changes to an annual window — members can select or change their MCO at any time by calling the DCBS Call Services Line at (855) 306-8959, using the kynect self-service portal, or contacting DMS. The change takes effect on the first day of the following month.
One common mix-up, worth clearing up: Aetna Better Health of Kentucky and Passport are not the same plan. Passport Health Plan is now operated by Molina Healthcare, and Aetna Better Health of Kentucky is a separate MCO. Aetna is also the single statewide plan for the SKY program, which covers children and youth in foster care and adoption assistance.
Kentucky did expand Medicaid under the Affordable Care Act, beginning January 1, 2014, which is why a broad group of low-income adults can qualify for coverage that includes substance use treatment.
If you get denied
You have appeal rights. The Mental Health Parity and Addiction Equity Act generally prevents plans that cover mental health and substance use disorder benefits from applying financial requirements and treatment limits to those benefits that are more restrictive than the ones they apply to medical and surgical care. Plans that contract with Medicaid programs are required to meet certain of those parity requirements.
When a request is denied, ask which medical necessity criteria were applied and why your case did not meet them, and use the plan's grievance and appeal process. Write down the date, the reference number and the exact wording of the denial.
How to start
Aetna Better Health of Kentucky members can reach the behavioral health hotline at 1-888-604-6106 any time, day or night, and Member Services at 1-855-300-5528 (TTY 711) Monday through Friday, 7 a.m. to 7 p.m. Eastern. Ask them three questions: is this level of care covered, does it need prior authorization, and what will I owe.
If you would rather talk through your options before calling the plan, call (800) 653-9376. The call is free to you, the referral service is paid for by treatment providers, and there is no judgment on the other end. SAMHSA's National Helpline (1-800-662-4357) is another free, confidential option, open 24 hours a day.
If you are in crisis right now, call or text 988 for the Suicide and Crisis Lifeline. Call 911 for a medical emergency.
Questions about Aetna Better Health Kentucky Coverage
Does Aetna Better Health of Kentucky cover rehab and detox?
Yes, substance use treatment is part of the behavioral health benefit. The plan's member handbook lists substance use rehabilitation and residential services, inpatient behavioral health services, intensive outpatient program services, partial hospitalization and outpatient behavioral health services. Because it is Medicaid, the service still has to be medically necessary and may need prior authorization.
Do I need prior authorization for addiction treatment?
Often, yes. Aetna Better Health of Kentucky began requiring prior authorization for behavioral health services, including substance use disorder services, for all members effective June 25, 2025, in both outpatient and inpatient settings. Substance use residential services already required it. The treatment provider usually submits the request before admission, so ask what was requested and what the plan decided.
Is Aetna Better Health of Kentucky the same as Passport?
No. Passport Health Plan is now operated by Molina Healthcare, and Aetna Better Health of Kentucky is a separate Medicaid managed care organization. Kentucky Medicaid offers several MCO choices, and members pick the one they want. All of them must provide the same standard Medicaid benefits; they differ in their networks and the extra value-added services they offer.
Are all Kentucky Medicaid plans required to cover the same addiction services?
Kentucky's Department for Medicaid Services says all MCOs must provide the same standard Medicaid benefits and coverage, and MCOs may add extra value-added services. That means the core substance use treatment benefit does not depend on which MCO you pick, though the provider network, authorization process and added supports do.
What if I need help right now?
Call 911 for a medical emergency. Aetna Better Health of Kentucky runs a behavioral health hotline at 1-888-604-6106 that is open 24 hours a day, and you can call or text 988 for the Suicide and Crisis Lifeline at any time.