W. Va. Code § 5-16-9
(f) The director shall include language in all contracts for pharmacy benefits management, as defined by §33-51-3 of this code, requiring the pharmacy benefit manager to report quarterly to the agency the following:
(4) For all pharmacy claims, the total amount paid to the pharmacy provider per claim, including, but not limited to, the following:
(Y) Ingredient cost.
In the event there is a difference between the amount for any pharmacy claim paid to the pharmacy provider and the amount reimbursed to the agency, the pharmacy benefit manager shall report an itemization of all administrative fees, rebates, or processing charges associated with the claim. The director shall provide an annual report to the Joint Committee on Health detailing the information required by this section, including any difference or spread between the overall amount paid by pharmacy benefit managers to the pharmacy providers and the overall amount charged to the agency for each claim by the pharmacy benefit manager. To the extent necessary, the director shall use aggregated, nonproprietary data only: Provided, That the director must provide a clear and concise summary of the total amounts charged to the agency and reimbursed to pharmacy providers on an annual basis.
(i) The Public Employees Insurance Agency shall require each of the following in its requests for proposals and contracts with a pharmacy benefit manager:
(k) By July 1, 2026, the Public Employees Insurance Agency shall issue a competitive bid solicitation for a contract with a pharmacy cost containment vendor actively engaging prescribing providers by presenting information regarding cost and effectiveness, including but not limited to data related to lowest net cost pharmaceutical decisions and related to reductions to polypharmacy rates, if clinically reviewed and appropriate.