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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 for Provider Registry

 

 Due to differences in business requirements, the standards evaluation is broken into two sets of standardization requirements:

  • Consumer messaging
  • Source messaging

Consumer messaging

The primary role of the PRS system is to enable provider identification to systems contributing data to or consuming data from provincial EHR solutions.  The predominant means for exchanging data with the EHR is HL7 version 3 messaging.

Standard

Fit for Purpose

Stewardship

Quality

Fits
Requirements

Implementation
Type 

Vendor Support

Canadian
Steward

SDO
Maintained

Complexity

Standard
Maturity

Training,
Support
and Tooling

CandidateAB MR2009 (HL7 v3)

High

Production
in Canada 

 HighImage Added

Yes (AB)

Localized by Alberta

High

 

MedHigh

HighImage Modified

anything else?pan-Canadian MR2009 (HL7 v3)

 Production
in Canada 		HighImage Modified Yes Localized by Infoway HighImage AddedHighHighImage Modified

HLv2 PRS XML Messaging

Partial

ProductionNot used
in Canada 

MediumImage Modified

Yes

NoYes

LimitedImage Modified

High

MediumImage Modified

Architectural Constraints and Considerations

Secondary Benefits

 

 

 

 

Use of HL7v3 conforms with the architectural design of Canada's digital health blueprint.

AB MR2009 extends the Canadian specification with the ability to merge and logically delete providers.

HL7v3 messaging does not provide the means to transmit a full version of the provider record including a history of changes.

The PRS XML Messaging specification is proprietary to the WHIC PRS solution.

Standardizing on MR2009 across EHR applications reduces complexity within the infostructure and for implementers by minimizing variability in models and vocabulary.

Recommendation

Supporting Rationale

AB MR2009 (HL7 v3) The specification was designed to meet the in-scope use cases for PRS consumers and conforms with the architectural design of Canada's digital health blueprint.