Clinical data captured at the point of care using a standard terminology can be efficiently and effectively used for a variety of administrative and secondary purposes such as reimbursement, vital and health statistics trending, and health policy decision making. Maps are created with a specific purpose in mind and refined for particular use cases. They should be understandable, reproducible and useful. Driven by a philosophy of ‘code once, use many times’, after clinical care is recorded in an electronic health record (EHR) using a standard terminology, mapping tables can be used to identify the related code(s) in legacy terminologies.
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