Mental Health Parity

The Mental Health Parity and Addiction Equity Act (MHPAEA) requires that health plans offering mental health and substance use disorder (MH/SUD) benefits apply the same treatment limitations to those benefits as they do to medical and surgical benefits. If a plan requires prior authorization for inpatient medical care, it cannot require prior authorization for inpatient psychiatric care under stricter criteria. If the plan has no visit limits on medical/surgical outpatient care, it can't impose visit limits on mental health outpatient care.

The law covers both quantitative limits (day limits, visit limits, dollar limits) and non-quantitative treatment limitations (NQTLs) — administrative requirements like prior authorization criteria, step therapy, and network adequacy standards. NQTLs are where parity violations most commonly occur because they're less visible than a numeric limit. A plan that requires prior authorization for all outpatient mental health visits but only for inpatient medical care above a certain cost threshold is applying a more restrictive NQTL to behavioral health than to medical care — a parity violation. The Consolidated Appropriations Act of 2021 significantly strengthened MHPAEA enforcement by requiring self-funded employers to perform and document a comparative analysis of their NQTLs, and to provide that analysis to the DOL or state regulators upon request. The analysis must show the factors, evidentiary standards, and processes used to develop NQTLs and demonstrate they're no more restrictive for MH/SUD than for medical/surgical benefits. Many employer plans are not in compliance — the DOL has been increasingly aggressive in requesting and acting on these analyses.

The takeaway: mental health parity compliance is not optional and the DOL is actively enforcing it. If you're a self-funded employer, work with your TPA to complete and document the NQTL comparative analysis now — not after you receive a DOL inquiry. Non-compliance exposes the plan sponsor to plan-level corrections and potential penalties.