EDI Retail Pharmacy Claim Transaction (NCPDP Telecommunications Standard version 5.1) is used to submit retail pharmacy claims to payers by health care professionals who dispense medications, either directly or via intermediary billers and claims clearinghouses. It can also be used to transmit claims for retail pharmacy services and billing payment information between payers with different payment responsibilities where coordination of benefits is required or between payers and regulatory agencies to monitor the rendering, billing, and/or payment of retail pharmacy services within the pharmacy health care/insurance industry segment.