September 2025 pCLOCD Release is now Available

The latest pan-Canadian LOINC Observation Code Database (pCLOCD) release, R06.23.00_2.81, is now available for review and implementation. This release reflects the ongoing collaboration and commitment of Canadian implementers and the LOINC Community to enhance interoperability across health and lab information systems.

How to Access the Release 

• Download or access pCLOCD content programmatically using the FHIR Terminology Server. Refer to the Terminology Server page for user guides.

• Search individual concepts using the Terminology Server: Shrimp Browser 

What’s new in this release?

• Existing LOINC terms: added 77 LOINC terms to address jurisdictions' requests and support laboratory information systems (LIS) implementation needs and interoperability.

• pan-Canadian nomenclature edits: applied to 415 LOINC terms to retain the specificity and clarity of previously aligned terms. These updates respond to generalizations introduced through the LOINC and SNOMED Collaborations on the LOINC ontology.

• LOINC 2.81 updates: Modifications made to 105 LOINC terms updated in the latest international release. This includes restoring specificity to 11 Hematology codes for ‘Erythrocytes’, ensuring specificity in Component names is retained. These changes, recommended by Canada and other LOINC Community members, support current implementations, clinical interpretations, reporting workflows, system usability, patient safety, and accurate data use.

• Canadian French Translation: expanded to include newly added terms and updates to revised terms.

• Management Information System (MIS) Standards updates provided by the Canadian Institute for Health Information to identify the LOINC and pCLOCD terms that align with the latest reporting requirements

Read the full details in the pCLOCD release notes. 

Submit Change Requests

Have a request for future updates? Submit it through InfoRMS, Infoway’s change request management system (accessible with a registered InfoCentral account).

Learn More & Connect: 

Explore our pCLOCD page for additional resources.

Have questions or feedback? Please reach out to our team.