For most insurance plans, yes. Federal parity law requires addiction and mental health treatment to be covered like any other medical condition, so your plan cannot simply refuse to pay for rehab. The real questions are more specific. Which levels of care does your plan cover, detox, inpatient, or outpatient? And what will you pay out of pocket after deductibles, copays, and any limits on the number of days? Those answers depend on your policy, and we can check the details with you.