Internally usually with own department; on occasion with Membership Accounting, Contracts, Corporate Communications, Corporate Compliance, Customer Service, EDI, Group Integration, Health Care Service, Information Services, Marketing, Medical Claims, Medicare Programs, and Professional Relations. Primary Functions: Responsible for coding new plans and changes into the third-party PBM database and internal claims adjudication system: ensuring the performance of post implementation audits to ensure customer billing, pharmacy payment, and benefit structure are consistent with contract terms.