As the practice, regulation and reimbursement of health care become more complicated, and as the demand for electronic medical records and health information exchange grows, a universal method of identifying test results and other clinical measurement is essential. The standardized medical terminology system called Logical Observation Identifiers Names and Codes, known as LOINC®, with a 57,000 term code vocabulary meets that need. LOINC provides the lingua franca needed for the creation of an electronic medical record and for health information to be electronically exchanged... 

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