Can I use actionResulting to link Questionnaire to a CarePlan activity? - hl7-fhir

Question

I have asked about Questionnaire and CarePlan earlier and someone else has asked another similar question, but my question this time is a bit more specific.
This time I wonder if it's allowed to create a CarePlan using 'detail' rather than reference and then link Questionnaire in to actionResulting. Could I use the actionResulting as a link to the Questionnaire? Would the following resource be valid?
{
"resourceType": "CarePlan",
...,
"activity": [
{
"actionResulting": [
{
"reference": "Questionnaire/copd-form"
}
]
"detail": {
"category": {
"coding": [
{
"system": "http://hl7.org/fhir/care-plan-activity-category",
"code": "observation"
}
]
},
"code": {
"text": "A code for capturing COPD subjective input from patient?"
},
"prohibited": false,
"scheduledTiming": {
"repeat": {
"frequency": 1,
"period": 1,
"periodUnits": "d"
}
},
"performer": [
{
"reference": "Patient/3183"
}
],
"description": "Daily COPD form"
}
}
}

Answer 1

Well, pointing to the Questionnaire would be saying "as a result of this plan, this Questionnaire was designed". I suspect what you'd really want to say is "as a result of this plan, I asked the patient to fill out Questionnaire X" (which would be a DiagnosticOrder) or "as a result of this plan, the patient answered this Questionnaire" (which would be a QuestionnaireResponse). For the first of those, I believe we're still waiting on an extension to allow a DiagnosticRequest to point to the Questionnaire to be filled out.