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Clem McDonald, Stan Huff, John Baenziger, Carol Cesta, Tom Fiers, Arden Forrey, Dennis Leavelle, Doug Martin, and Frank Stallings first meet at Regenstrief Institute in Indianapolis to discuss a public use code system for exchanging laboratory and clinical observations between computer systems.
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A second formative meeting convenes to establish what would become LOINC.
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LOINC 1.0 is released with more than 6,000 laboratory test results.
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The original article describing the standard, Logical observation identifier names and codes (LOINC) database: a public use set of codes and names for electronic reporting of clinical laboratory test results, was published in Clinical Chemistry.
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HL7 identifies LOINC as a preferred code set for laboratory test names in transactions between health care facilities, laboratories, laboratory testing devices, and public health authorities.
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The LOINC.org internet domain name is registered to serve as the home of LOINC's web presence.
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The first LOINC Public Meeting is held at Regenstrief Institute in Indianapolis.
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LOINC 2.0 is released with 28,694 terms.
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The 50,000th LOINC code is released with LOINC version 2.22.
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The Twitter account @LOINC is established.
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The Search LOINC web app, now available at search.loinc.org, is launched.
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RELMA version 5.0 is released. It adds Lucene indexes for vastly improved searching. Rather than separate builds, this is also the first version to incorporate all supported languages.
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LOINC reaches 10,000 registered users.
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RELMA version 6.0 is released.
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The LOINC OID (2.16.840.1.113883.6.1) for an external code system is registered with HL7.
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RSNA and Regenstrief announce effort to unify radiology procedure naming.
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LOINC's Premium Membership program launches.
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J. Gilbert Hill and Cindy Johns are named the inaugural recipients of the LOINC Award for Distinguished Contributions.
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IICC announces LIVD, a specification for digital publication of LOINC to vendor IVD test results in clinical laboratories.
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Susan Matney receives the LOINC Award for Distinguished Contributions.
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Betsy L. Humphreys of the U.S. National Library of Medicine is presented with an honorary LOINC code (86466-0) on the event of her retirement.
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LOINC reaches 50,000 registered users.
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The first LOINC Conference, a restructured event comprising workshops and LOINC Committee meeting, is held at Regenstrief Institute in Indianapolis.
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Pamela D. Banning receives the LOINC Award for Distinguished Contributions.
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U.S. Food & Drug Administration sets requirement for LOINC to be used for lab test data in studies starting after 2020.
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LOINC releases a new Guide for Using LOINC Microbiology Terms to assist users in identifying the correct LOINC code for microbiology and infectious disease laboratory tests.
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LOINC announces new terminology services API using HL7® FHIR®.
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To celebrate the 25th anniversary of its inception, the inaugural LOINC Day is held.
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LOINC reaches 75,000 registered users.
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LOINC surpasses 100,000 registered users.
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Marjorie Rallins, DPM, MS, becomes LOINC Executive Director.
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Version 2 of the SearchLOINC web app is released.
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The 100,000th LOINC code is released with LOINC version 2.75.