N.C. Gen. Stat. § 130A-45.13
A public health authority board may contract directly with private vendors to operate the authority's Medicaid billing system as an alternative to the State-operated health services information system. The contract may provide for the private vendor to bill directly the State Medicaid billing system (MMIS), thereby bypassing the State health services information system (HSIS). The public health authority shall issue a "request for proposal" to solicit private vendor bids for contracts authorized under this section. Information systems authorized under this section shall be consistent with and interface with relevant statewide public health data systems to address State cost containment and service reporting needs.
N.C. Gen. Stat. § 130A-45.13