AllergyIntolerance (Summary Statement of Allergy or Intolerance) has a bug in inv-dh-ait-04

[dtr-agency]

Prerequisites

• [X] I have verified the problem exists in the available content
• [X] I have searched open and closed issues to make sure it isn't already reported
• [X] I have written a descriptive issue title

The bug

As part of the SML assurance validation task, a bug has been discovered with the FHIRPath of the Summary Statement of Allergy or Intolerance profile's invariant inv-dh-ait-04.

The invariant is: Description: A related person shall conform to Base RelatedPerson Element: AllergyIntolerance.extension:authorRelatedPerson FHIRPath: resolve().conformsTo('http://ns.electronichealth.net.au/ci/fhir/3.0/StructureDefinition/relatedperson-dh-base-1')

All examples, including ones that should obviously pass are failing (ie an error being raised against inv-dh-ait-04

What I expected to happen

Scenario	Expected result
The AllergyIntolerance instance does not include a recorder related person	pass
The AllergyIntolerance instance includes a recorder related person with a reference, to contained RelatedPerson resource that conforms to Base RelatedPerson	pass
The AllergyIntolerance instance includes a recorder related person with a reference, to an external RelatedPerson resource that conforms to Base RelatedPerson	pass
The AllergyIntolerance instance includes a recorder related person with a reference, to contained RelatedPerson resource that conforms to Base RelatedPerson	pass
The AllergyIntolerance instance includes a recorder related person with a reference, to contained RelatedPerson resource that does not conform to Base RelatedPerson	fail
The AllergyIntolerance instance includes a recorder related person with a reference, to contained RelatedPerson resource that does not conform to Base RelatedPerson	fail

The fix

Verification of this FHIRPath pattern with targeted examples, conclude that the FHIRPath that works is this:

valueReference.reference.resolve().conformsTo('http://ns.electronichealth.net.au/ci/fhir/3.0/StructureDefinition/relatedperson-dh-base-1')

Workarounds

Providing a logical reference via identifier rather than a reference to a resource.

QA.html excerpt

TBD

[dtr-agency]

This issue is accepted as a known issue due to project constraints in accordance with the following requirements:

• this is not a mandatory element;
• there is a functioning workaround
• this content is not expected in the PSML use case