Does Medicaid cover rehab?
It depends on which kind of rehab — Medicaid widely covers substance-use and mental-health rehab and medically necessary physical rehabilitation, but the setting, limits, and prior-authorization rules vary by state.
What flips the answer
- Covered when
The care is medically necessary substance-use or mental-health treatment, or physical/occupational/speech therapy, and prior authorization (where required) is approved.
- Not covered when
The setting or service isn't part of your state's elected rehabilitative benefits, or medical necessity isn't documented.
- Not covered when
You exceed a state visit cap or duration limit without an approved exception.
"Rehab" can mean two different things. For substance-use disorder and behavioral-health rehab, Medicaid covers a range of services in most states — from outpatient counseling to intensive outpatient, residential treatment, and medication-assisted treatment. For physical rehabilitation, Medicaid covers medically necessary services such as physical, occupational, and speech therapy and skilled nursing or inpatient rehab.
Which services fall under mandatory versus optional benefits differs by state. Rehabilitative services are an optional benefit category, so the exact menu — residential treatment, day programs, therapy visit caps — is a state choice. Inpatient hospital care and physician services are mandatory, but the rehab-specific pieces around them can vary.
Almost all rehab is subject to medical-necessity review and often prior authorization, especially for residential or inpatient levels of care. Your state Medicaid agency or managed-care plan sets the specific criteria, covered levels of care, and any duration limits.
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