Category User guide Organisation Logical Observation Identifiers Names and Codes (LOINC) Type Standard Version 2024 Access Open Status Active Updated Feb-25 LOINC is an international standard for identifying health measurements, observations and documents such as laboratory and clinical test results. This document outlines the search syntax for advanced users searching the LOINC database.Main sections:- CoreComponentSpecial characters- Advanced LOINC field names Access Search Syntax: Advanced Search Syntax v2024 By accessing this content, you are leaving this website. The Agency takes no responsibility for the accuracy of content on the destination page.