Behavioral health carve-out
A behavioral health carve-out is an arrangement in which mental health and substance use treatment benefits are separated from a health plan's general medical benefits and managed by a specialized organization rather than the main medical plan.
Updated
In a carve-out, a payer or program takes the behavioral health portion of coverage — services related to mental health and substance use disorders — and hands its administration to a separate specialty entity, often called a managed behavioral health organization. That entity handles functions such as provider networks, utilization review, authorizations, and claims for behavioral health, while the primary medical plan continues to administer physical health benefits.
The structure matters for billing because it changes where behavioral health claims are sent, which network and credentialing rules apply, and which entity issues authorizations and payments. The alternative arrangement, where behavioral health is administered within the same plan as medical benefits, is generally described as a carve-in or integrated model. Whether a given plan uses a carve-out, and how it is structured, depends on the specific payer, employer group, Medicaid program, or contract.
Carve-outs appear across commercial insurance, Medicaid, and Medicare-related arrangements. In Medicaid, states have used behavioral health carve-outs as one way to organize and manage these services, but the design varies by state and can change over time. The governing rules, covered services, and administrative contacts are set by each program and payer rather than by any single national standard.
In practice
For billing and revenue cycle work, the practical consequence is that eligibility, network participation, prior authorization, and claim submission for behavioral health may run through a different administrator than the member's medical card suggests. Staff typically confirm at intake whether behavioral health is carved out, identify the responsible administrator, and verify network status and authorization requirements with that specific entity, because sending a behavioral health claim to the medical plan when the benefit is carved out is a common source of denials.
Because arrangements differ by payer, employer, and state Medicaid program — and can be renegotiated when contracts renew — durable practice relies on verifying the current setup for each patient and plan rather than assuming a fixed rule. Authoritative program details for public payers are published by the relevant federal and state agencies.
Commonly confused with
- Carve-in / integrated behavioral health: The opposite arrangement: behavioral health benefits are administered within the same plan as medical benefits rather than split out to a separate specialty administrator.
- Mental health parity: A legal framework addressing how behavioral health benefits compare to medical/surgical benefits in limits and treatment; it concerns benefit equivalence, not whether administration is carved out to a separate entity.
- Managed behavioral health organization (MBHO): The type of specialty entity that often administers a carve-out; the MBHO is the administrator, whereas the carve-out is the contractual arrangement that separates the benefit.