Medicaid Carve-In / Carve-Out
Definition
Medicaid carve-in and carve-out are designations that covered entities make in OPAIS for each registered site, indicating how they handle 340B drugs for Medicaid fee-for-service (FFS) patients.
A covered entity that carves in elects to bill Medicaid FFS for drugs purchased at 340B prices. To do so, it must designate this in OPAIS, which generates its inclusion in the Medicaid Exclusion File (MEF). The MEF signals state Medicaid agencies not to request manufacturer rebates on those claims, preventing duplicate discounts.
A covered entity that carves out elects not to dispense 340B drugs to Medicaid FFS patients at that site. Carving out eliminates FFS duplicate discount risk entirely for that site, since 340B drugs are not used for Medicaid FFS patients.
The carve-in/carve-out decision affects program economics, compliance complexity, and patient access. Covered entities must ensure that their OPAIS designations accurately reflect their actual billing practices and that their dispensing systems are configured to implement the carve-in or carve-out consistently.
Frequently Asked Questions
Why Medicaid Carve-In / Carve-Out Matters
The carve-in/carve-out designation directly affects duplicate discount prevention obligations. Inaccurate OPAIS designations—or dispensing practices that don't match the designation—are a primary source of duplicate discount violations.
How Virtue 340B Uses It
Virtue 340B reviews Medicaid carve-in/carve-out designations and billing practices as a core component of every audit engagement, ensuring that OPAIS designations accurately reflect actual operations.