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Pan-Canadian Master Terminology Worksheet and Messaging Artifacts

The Pan-Canadian Master Terminology Worksheet (MTW) is an excel spreadsheet that provides links between the messaging artifacts and all of the terminologies in use within the different domains of the pan-Canadian electronic health record (EHR).

The MTW is a compilation of the recommended terminologies and value sets from Infoway sponsored investment projects. The purpose of the content in our pan-Canadian standards is to support the interoperable EHR at both the pan-Canadian and jurisdictional level. Examples of some of the terminologies found in the MTW include: HL7, ISO, and SNOMED CT.

* Business and Technical Artifacts that Support the pan-Canadian Messaging Standards

Pan-Canadian Master Terminology Worksheet (MTW) and Messaging Artifacts

Business Functions Benefits

To support the pan-Canadian messaging standards, the following business and technical artifacts have been created:

  • Master Terminology Worksheet (MTW): A human readable Excel file that provides links between the messaging artifacts and the terminology worksheet. It also includes the business rules to generate the allowable value set contents and URLs to the related code systems. It covers all messaging standard domains
  • Terminology Implementation Guide: Provides implementation, compliance and conformance guidelines for use in developing software that conforms to Infoway’s Message Specifications. The Implementation Guide has been available since Maintenance Release 2009.
  • Vocabulary Model Interchange Format (MIF): Files that provide a way for computer systems to consume the information in the MTW. The MIF has been available since Maintenance Release 2009.
  • Provides a single point of entry to understanding the different code systems and value sets in use across the various EHR domains
  • Improves data quality and enables semantic interoperability
  • Reduces storage, dissemination and duplication costs as it enables information collected once to be re-used by other applications
  • Examples of some of the terminologies found in the MTW include: HL7, ISO, and SNOMED CT


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* Status Definitions

Canadian Draft for Use (CDFU) - The standard has been developed but it may or may not be implemented or be in use. The standard is considered ready to be used by early adopters: however, change is probable as stakeholders begin using the standard in implementations.

Canadian Approved Standards (CAS) - The standard is in use for the purpose(s) or context(s) for which it was intended. Only those parts of the standard that have been implemented or are in use can progress for consideration as CAS. This decision point signifies that the standard has reached a level of stability and is comprehensive enough such that major changes are not expected.

IHTSDO®, SNOMED CT®, HL7®, ISO®, DICOM® and LOINC® are trademarks or registered trademarks of the respective organizations and should be considered as such. All rights are reserved by the governing organization.

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