September 2024 pCLOCD Release is now Available

The latest pan-Canadian LOINC Observation Code Database (pCLOCD) release R06.21.00_2.78 is now available for review and implementation on both the Infoway Terminology Gateway and our new FHIR Terminology Server. This is part of our commitment to maintaining both systems until the Gateway is decommissioned. Content includes 25 new concepts requested by Canadian stakeholders to support laboratory and clinical data interoperability, 563 edits to existing LOINC concepts, and 521 edits to Canadian French Translation of LOINC concepts.

Updates and Changes to pCLOCD: 

As of the September 2024 release, we are introducing changes to align with LOINC.

Notably, the Microsoft Access version of pCLOCD will no longer be available, following LOINC's decision to discontinue support for this format. Rest assured, pCLOCD content will continue to be available in all other formats you are familiar with, and we are here to assist with any questions or adjustments to ensure a smooth transition.

Additionally, we have made structural updates to the pCLOCD Nomenclature table, increasing the version number to R06.21.00_2.78 . This update includes nine new columns that have been added to the table, each representing LOINC part codes for key attributes in both LOINC and pCLOCD . These LOINC part codes were introduced into pCLOCD as part of the normalization process for FHIR representation. These columns include:

• LN COMPONENT Part#
• LN PROPERTY Part#
• LN TIME_ASPCT Part#
• LN SYSTEM Part#
• LN SCALE_TYP Part#
• LN METHOD_TYP Part#
• LN CLASS Part#
• PC Sub-Class Part#
• PanCan COMPONENT Part#

These additions improve the consistency and interoperability of pCLOCD, particularly in its alignment with FHIR-based systems. This structural enhancement marks an important step toward improving the usability and flexibility of the standard.

Read more about all the changes in the pCLOCD release notes. 

Get pCLOCD version R06.21.00_2.78 by:

• Downloading pCLOCD from Terminology Gateway. 
• Accessing pCLOCD programmatically from our FHIR Terminology Server. Please see the user access guide and our Terminology Server page for more information.
• Searching for individual pCLOCD and LOINC concepts using our Terminology Server Shrimp Browser. 

Submitting Requests for Changes 

Requests for changes to pCLOCD and LOINC can be made via Infoway’s request for change management system, InfoRMS, accessible with a registered InfoCentral account. 

Learn More

To learn more about pCLOCD, visit the LOINC and pCLOCD Standards page. Here, you'll find resources to help you understand this terminology standard and connect with the community.

Please reach out to our team with any questions or to share your feedback.