The PBM is the vendor BWC has selected to process outpatient medication bills. Pharmacies submit bills for prescriptions electronically to the PBM. The PBM has access to BWC claim information and approves or denies bills accordingly. The PBM issues payment for prescriptions directly to pharmacy providers and injured workers. BWC's PBM is ACS State Healthcare (ACS). To contact ACS call 1-800-OHIOBWC, and follow the prompts.