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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 V3.0

HighImage Removed

Production
in Canada 

Only Jurisdictional ImplementersImage Removed

Yes

Yes

HighImage Removed

 

Med

AvailableImage Removed

CeRx 4.4  HL7 V3.0

HighImage Modified

Production
in Canada 		MediumYesYesHighHighAvailable

HLv2 

Partial

Not used
in Canada 

High

No

Yes

Medium

High

Unknown

Architectural Constraints and Considerations

Secondary Benefits

The Canadian HL7 V3 Immunizations CeRx specification was designed to support the immunization in scope 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 The CeRx specification has been superseded by the Immunizations Specification for vaccine event messaging.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 CeRx implementers use the CeRx 4.4 specification for immunization messaging.The specification was designed to meet the in-scope use cases and conforms with the architectural design of Canada's digital health blueprint.