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What is LOINC and Why Does it Matter?


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November 2012

LOINC (Logical Observation Identifier Names and Codes) is a universal code system for identifying laboratory tests and clinical observations. Mapping local terms to LOINC enables the exchange and aggregation of electronic health data from many independent systems, including clinical care, research, and outcomes management. Dr. Rosenblatt describes how LOINC assignments are made and the importance of these codes in laboratory medicine and clinical care.



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