Insurance Carrier

CoreSource Addiction Treatment Coverage

Verify Your CoreSource Benefits Call 1-888-685-2199

Confidential & 100% independent. Addiction Treatment Services is not affiliated with or endorsed by CoreSource.

Not sure what your plan covers? A specialist can check it in minutes: 1-888-685-2199

Does CoreSource Cover Addiction Treatment?

CoreSource is a renowned third-party administrator of employee health and benefit plans, known for offering customized health insurance solutions to employers of various sizes. As a subsidiary of Trustmark Mutual Holding Company—a recognized leader in the health and wellness industry—it leverages its parent company's robust resources and expertise. CoreSource focuses on providing flexible and comprehensive insurance options that cater to the unique needs of its clients while driving cost efficiencies for employer-sponsored plans. Its suite of services encompasses a broad array of health plan administration services, analytics, and innovative solutions aimed at enhancing employee health and well-being.

Two federal laws make coverage for substance use disorder treatment close to universal in the United States. The Affordable Care Act lists mental health and substance use disorder services among the ten essential health benefits that individual and small-group plans must include. The Mental Health Parity and Addiction Equity Act of 2008 (MHPAEA) goes further: when a plan covers behavioral health, it may not impose financial requirements or treatment limitations more restrictive than those applied to comparable medical and surgical care.

What differs from member to member is not usually whether treatment is covered but how much you pay and what approval is required — and both come down to your specific plan, network status and deductible. The fastest way to find out is a benefits check, which takes a few minutes and costs nothing.

63 centers in our directory are listed as accepting CoreSource. In-network status can change, so confirm it before admission.

Benefit Snapshot

Coverage by Level of Care

General patterns across commercial behavioral health plans. Your plan documents and a verification of benefits are the authority on your actual costs.

Levels of addiction care and how health plans generally handle them.
Level of care	Typically covered	Prior authorization	Typical member cost (in-network)	Notes
Medical Detox	Typically covered	Usually required	Deductible, then coinsurance	Authorised in short blocks of days and extended by concurrent review based on withdrawal severity.
Inpatient / Residential	Typically covered	Usually required	Deductible, then coinsurance	Length of stay is driven by ASAM medical-necessity criteria rather than a fixed 30-day allowance.
Partial Hospitalization (PHP)	Typically covered	Often required	Per-day copay or coinsurance	Commonly approved as the step down from residential care; runs five days per week.
Intensive Outpatient (IOP)	Typically covered	Plan-dependent	Per-session copay or coinsurance	Nine or more clinical hours per week; among the most widely approved levels of care.
Outpatient Therapy	Typically covered	Rarely required	Per-visit copay	Individual, group and family sessions; telehealth is covered on most plans.
Medication-Assisted Treatment (MAT)	Typically covered	Some medications	Pharmacy tier copay plus visit cost	Buprenorphine, naltrexone and methadone are generally covered; some formulations require step therapy.
Sober Living Housing	Limited	N/A	Usually self-pay	Room and board is generally not a covered medical benefit, though clinical services delivered alongside it may be.

This table describes general patterns in behavioral health benefits and is not a quote, not a guarantee of benefits and not specific to your plan. Coverage, prior-authorization rules and cost sharing vary by plan, state, network and product line — Medicare Advantage and Medicaid plans differ from commercial plans. Verify your benefits before admission.

Confidential

Verify Your CoreSource Benefits

Send us four details and a specialist will confirm your coverage, deductible status and approved levels of care — usually within the hour, at no cost and with no obligation.