Medicaid can help cover the cost of rehab for individuals with low income, including both inpatient and outpatient treatment services. Coverage varies by state but often includes essential care such as detox, therapy, and residential programs. Inpatient treatment is typically covered for at least 30 days, while outpatient services may have visit limits. Eligibility depends on state-specific income guidelines, residency, and other criteria. To take advantage of this benefit, individuals must apply for Medicaid and work with a provider to determine the medical necessity of their rehab treatment.