LOINC is the international standard for identifying health observations, measurements, and documents. Get started.
Pre-release, special use codes are available for emergent situations. We support their use in this unique situation.
Find what you need
This is your entry point to locating terms in the LOINC database, finding answers in our documentation, or searching topics on our website.
LOINC version 2.83 was released on August 19, 2026
| New concepts in v2.83 | 3,080 |
| Total concepts | 112,405 |
| Laboratory | 69,651 |
| Clinical | 28,786 |
| Surveys | 12,807 |
| Claims Attachments | 1,161 |
| Next release | Feb 2027 |
LOINC release notes
All the ways to access LOINC
Requesting new LOINC codes
Upcoming events in the LOINC community
Clinical Committee Online
2026-09-15 @ -
Laboratory Committee Online
2026-09-17 @ -
HL7 FHIR Connectathon & Working Group Meeting Rockville, MD
2026-09-19 / 2026-09-24
Document Ontology Subcommittee on Analysis Online
2026-09-21 @ -
Full event calendar
LOINC Committee meetings
Recently published journal articles referencing LOINC
Challenges implementing treatment guidelines in electronic health records: the...
Addressing property and unit discordance in laboratory interoperability: the...
National implementation of LOINC: translation methodology and experience from...
LLM-Assisted Clinical Data Harmonization: Combining Automated ETL Generation...
Full library of LOINC journal articles
Organizations and applications using LOINC







