Logical Observation Identifiers Names and Codes (LOINC®)


Logical Observation Identifiers Names and Codes (LOINC) is a database and universal standard for identifying medical laboratory observations. It was developed and is maintained by the Regenstrief Institute, a US non-profit medical research organization, in 1994. LOINC was created in response to the demand for an electronic database for clinical care and management and is publicly available at no cost.

It is endorsed by the American Clinical Laboratory Association and the College of American Pathologists. Since its inception, the database has expanded to include not just medical and laboratory code names, but also: nursing diagnosis, nursing interventions, outcomes classification, and patient care data set. Several standards, such as IHE or HL7, use LOINC to electronically transfer results from different reporting systems to the appropriate healthcare networks (Source: Wikipedia).

What is LOINC:

A Webinar on LOINC


Searching the LOINC Database

To search LOINC database for LOINC code, Click Here.For example you can search “Amoxicillin” and you will end up with the following results:


Then you can choose the one of the codes 16365-9 and when you click on it you get more information on the drug and ways to provide it to a patient.