How to apply PlanDefinition inorder to generate a carePlan - hl7-fhir

Question

I am newbie to FHIR. Trying to create careplan by applying PlanDefinition/$apply. Are there any examples available so that I can take them as reference and generate careplan out of planDefintion.
I am able to post an planDefinition but I don't have any clue on implementing $apply out of it.

Answer 1

There is an implementation of PlanDefinition/$apply here:
https://github.com/DBCG/cqf-ruler/blob/master/r4/src/main/java/org/opencds/cqf/r4/providers/PlanDefinitionApplyProvider.java#L84
Note that there is in-progress work on that provider to make it more modular, but the logic is essentially the same.

Answer 2

Have a look at this example from the FHIR Wiki
Request: Apply the low suicide risk order set to patient 124
GET [base]/PlanDefinition/example/$apply?subject=Patient/124
Response: Returned on successful application of the order set
HTTP/1.1 200 OK
<?xml version="1.0" encoding="UTF-8"?>
<CarePlan xmlns="http://hl7.org/fhir">
<!-- This example demonstrates the result of an $apply operation for the citalopramPrescription activity definition. -->
<id value="apply-operation-response"/>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml">
Generated...
</div>
</text>
<contained>
<ServiceRequest>
<id value="referralrequest"/>
<status value="draft"/>
<intent value="proposal"/>
<code>
<coding>
<system value="http://snomed.info/sct"/>
<code value="306206005"/>
</coding>
<text value="Referral to service (procedure)"/>
</code>
<subject>
<reference value="Patient/124"/>
</subject>
<occurrenceDateTime value="2017-02-26T11:47:00.000Z"/>
<requester>
<reference value="Practitioner/123"/>
</requester>
<performerType>
<coding>
<system value="http://nucc.org/provider-taxonomy"/>
<code value="261QM0850X"/>
<display value="Adult Mental Health"/>
</coding>
</performerType>
<reasonCode>
<coding>
<system value="http://example.org/CodeSystem/suicide-risk-assessment-score"/>
<code value="Low"/>
<display value="Low Suicide Risk"/>
</coding>
<text value="Low Suicide Risk"/>
</reasonCode>
<reasonReference>
<reference value="RiskAssessment/suicide-risk-assessment"/>
</reasonReference>
</ServiceRequest>
</contained>
<contained>
<Medication>
<id value="citalopramMedication"/>
<code>
<coding>
<system value="http://www.nlm.nih.gov/research/umls/rxnorm"/>
<code value="200371"/>
</coding>
<text value="citalopram"/>
</code>
<form>
<coding>
<system value="http://snomed.info/sct"/>
<code value="385055001"/>
<display value="Tablet dose form"/>
</coding>
<text value="Tablet dose form"/>
</form>
<ingredient>
<itemReference>
<reference value="#citalopramSubstance"/>
</itemReference>
<amount>
<numerator>
<value value="20"/>
<unit value="mg"/>
</numerator>
<denominator>
<value value="1"/>
<unit value="{tbl}"/>
</denominator>
</amount>
</ingredient>
</Medication>
</contained>
<contained>
<Substance>
<id value="citalopramSubstance"/>
<code>
<coding>
<system value="http://www.nlm.nih.gov/research/umls/rxnorm"/>
<code value="2556"/>
</coding>
<text value="citalopram"/>
</code>
</Substance>
</contained>
<contained>
<MedicationRequest>
<id value="citalopramPrescription"/>
<status value="draft"/>
<intent value="proposal"/>
<medicationReference>
<reference value="#citalopramMedication"/>
</medicationReference>
<subject>
<reference value="Patient/124"/>
</subject>
<requester>
<reference value="Practitioner/123"/>
</requester>
<reasonCode>
<coding>
<system value="http://example.org/CodeSystem/suicide-risk-assessment-score"/>
<code value="Low"/>
<display value="Low Suicide Risk"/>
</coding>
<text value="Low Suicide Risk"/>
</reasonCode>
<reasonReference>
<reference value="RiskAssessment/suicide-risk-assessment"/>
</reasonReference>
<!--definition>
<reference value="ActivityDefinition/citalopramPrescription"/>
</definition-->
<instantiates value="ActivityDefinition/citalopramPrescription"/>
<dosageInstruction>
<text value="1 tablet oral 1 time daily"/>
<timing>
<repeat>
<frequency value="1"/>
<period value="1"/>
<periodUnit value="d"/>
</repeat>
</timing>
<route>
<coding>
<code value="26643006"/>
<display value="Oral route (qualifier value)"/>
</coding>
<text value="Oral route (qualifier value)"/>
</route>
<doseAndRate>
<type><text value="ordered"/></type>
<doseQuantity>
<value value="1"/>
<unit value="{tbl}"/>
</doseQuantity>
</doseAndRate>
</dosageInstruction>
<dispenseRequest>
<numberOfRepeatsAllowed value="3"/>
<quantity>
<value value="30"/>
<unit value="{tbl}"/>
</quantity>
</dispenseRequest>
</MedicationRequest>
</contained>
<instantiatesCanonical value="PlanDefinition/example"/>
<status value="draft"/>
<intent value="proposal"/>
<subject>
<reference value="Patient/124"/>
</subject>
<activity>
<reference>
<reference value="#referralrequest"/>
</reference>
</activity>
<activity>
<reference>
<reference value="#citalopramPrescription"/>
</reference>
</activity>
</CarePlan>

Answer 3

I am actively looking for the Plandefinition$apply operation usage or implementation.
as #code tutorial meny