News
March 7, 2025

Regenstrief HDS and SNOMED International announce upcoming production release of the LOINC® Ontology

Regenstrief Institute’s Health Data Standards (HDS) team and SNOMED International are set to debut the first production release of the LOINC Ontology: A LOINC and SNOMED CT Interoperability Solution. The unveiling and review will take place during the biannual stakeholder meeting on March 25, 2025. 

Attendees will gather at the webinar also to: 

  • Review the new LOINC terminology release, update the HDS strategic plan and conduct a briefing on work across committees and the community.  
  • Learn about recent accomplishments and work in progress by the Regenstrief Health Data Standards (HDS) team.   

Presenters at the meeting will additionally address questions submitted by attendees in advance and live questions from the audience.  

Attendees will have an opportunity to interact directly with the Regenstrief HDS team and SNOMED International, ask questions, and gain deeper insights into the nuances of the new and edited LOINC concepts. 

Sign up for the webinar here:https://loinc.org/news/free-webinar-to-introduce-the-loinc-ontology-version-1-0/,    

LOINC Version 2.80 Hotfix 

To correct issues introduced in Version 2.79 and add terms accidentally omitted, a Hotfix labeled Version 2.80 was released in February 2025.  

All users who have implemented Version 2.79 into their systems are encouraged to upgrade to Version 2.80 as soon as possible. Any users who have not yet incorporated Version 2.79 may skip to Version 2.80 without issue. Similarly, RELMA Version 7.13 contains content from LOINC 2.80 which supersedes RELMA 7.12 and LOINC 2.79.  

The release of LOINC 2.80 includes more than 3,000 new and edited concepts. These concepts and enhancements improve data standardization, interoperability and regulatory compliance, supporting the broader goals of healthcare modernization and quality improvement.   

LOINC, short for Logical Observation Identifiers Names and Codes, is a global standard for health terminology. Created and maintained at Regenstrief, LOINC enables the identification, exchange and collection of data across health systems and is used around the world.   

About LOINC® from Regenstrief Institute  
LOINC® was created in 1994 at Regenstrief Institute to facilitate interoperability in healthcare and is administered by Regenstrief Institute Health Data Standards. There was a growing trend to send clinical data electronically between healthcare entities, a practice that has now become ubiquitous. Today, it contains more than 104,000 concepts for everything from an albumin level to a zygomatic arch X-ray report. For each concept, LOINC contains many other rich details, such as synonyms, units of measure and carefully crafted descriptions. 

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