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This guide focuses on the selection of messaging standards to support the in scope use cases.

Messaging

The following standards were considered to communicate Vaccination Events and to Query Immunization Repositories.for Provider Registry

 

Standard

Fit for Purpose

Stewardship

Quality

Fits
Requirements

Implementation
Type 

Vendor Support

Canadian
Steward

SDO
Maintained

Complexity

Standard
Maturity

Training,
Support
and Tooling

Immunization HL7 V3.0Candidate

High

Production
in Canada 

Only Jurisdictional ImplementersImage Removed 

YesYes

Localized

High

 

Med

Available

CeRx 4.4  HL7 V3.0anything else?

Production in Canada MediumYes Yes HighImage Removed HighAvailable

HLv2 

Partial

Not used
in Canada 

High

No

Yes

Medium

High

Unknown

Architectural Constraints and Considerations

Secondary Benefits

HL7 V3 Immunizations specification was designed to support the immunization use cases in a manner consistent with the design principles of Canada's digital health blueprint. The CeRx specification has been superseded by the Immunizations Specification for vaccine event messaging.

Version 3 uses rigorous analytic and message building techniques and eliminates areas of optionality that could negatively impact semantic interoperability.

Recommendation

Supporting Rationale

 

 

 

 

 It is recommended that new implementations adopt Immunization HL7 V3.0 for immunization.The specification was designed to meet the in-scope use cases and conforms with the architectural design of Canada's digital health blueprint.