The universal standard for identifying health measurements, observations, and documents.

Reference labs, healthcare organizations, U.S. federal agencies, insurance companies, software vendors, in vitro diagnostic testing companies, and more than 56,500 registered users from 170 countries use LOINC to move data seamlessly between systems.

It’s free, but invaluable.

How do you say glucose?

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Explore all the LOINC codes directly in your web browser. More Info

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LOINC Essentials

Learn Dr. Vreeman's secrets for mapping local codes to LOINC.