FHIR Chat · Extension on effective with FHIR Mapping Language

Stream: mapping-framework

Topic: Extension on effective with FHIR Mapping Language

Alexander Dimitrov (Apr 03 2021 at 18:00):

Hello, I'm trying to map the data-absent-reason extension on the effective Element from the IPS profile with the FHIR mapping language:
Bildschirmfoto-2021-04-03-um-19.50.14.png

I'm not really sure how exactly to do this, but here is how I tried:

src -> tgt.effective = create('extension') as dataAbsentReason

Unfortunately, I am getting the following error:

<diagnostics value="Failed to call access method: org.hl7.fhir.exceptions.FHIRException: Exception executing transform tgt.effective = create('extension') as dataAbsentReason on Rule &quot;effectiveTime-width&quot;: null"></diagnostics>

Does anyone know how to fill the data-absent-reason extension on effective with the FHIR Mapping Language? Thanks in advance!

Oliver Egger (Apr 03 2021 at 19:25):

can you provide the map somewhere? I think you are a level to high, maybe try:

src -> tgt.effective = create('Period') as effective, effective.extension as dataAbsenReson, ...

Alexander Dimitrov (Apr 04 2021 at 07:41):

thanks for the help @Oliver Egger, I changed the rule to the following and it seems to be generating it correctly now:

substanceAdministration.effectiveTime as effectiveTime where (width.where(value.exists())) -> tgt.effective = create('Period') as effective then {
                effectiveTime.width as width -> effective.extension as dataabsentReason, dataabsentReason.url = 'http://hl7.org/fhir/StructureDefinition/data-absent-reason', dataabsentReason.value = create('code') as code then {
                    width -> code.value = 'unknown' "code-value";
                }"coding";
            }"effectiveTime-width";

Snippet of the generated resource:

Bildschirmfoto-2021-04-04-um-09.40.21.png

Oliver Egger (Apr 04 2021 at 08:59):

@Alexander Dimitrov now you only have to decide if you want to have an effectivePeriod or an effectiveDateTime which is unknown :grinning:

Last updated: Apr 12 2022 at 19:14 UTC