<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="http://apiframework.dedalus.eu/fhir/StructureDefinition/Communication-WithKnownDestination" />
  <name value="Communication-WithKnownDestination" />
  <status value="draft" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Communication" />
  <baseDefinition value="http://apiframework.dedalus.eu/fhir/StructureDefinition/Communication" />
  <derivation value="constraint" />
  <differential>
    <element id="Communication.extension">
      <path value="Communication.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Communication.extension:sourceMedium">
      <path value="Communication.extension" />
      <sliceName value="sourceMedium" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://apiframework.dedalus.eu/fhir/StructureDefinition/extension-Communication-sourceMedium" />
      </type>
    </element>
    <element id="Communication.medium">
      <path value="Communication.medium" />
      <min value="1" />
    </element>
    <element id="Communication.medium.coding">
      <path value="Communication.medium.coding" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Communication.recipient">
      <path value="Communication.recipient" />
      <min value="1" />
    </element>
    <element id="Communication.received">
      <path value="Communication.received" />
      <requirements value="This elements shall be empty when the source medium creates (posts) the communication, while it shall be not empty when a coomunication recipient acknowledges the receival with a PUT on the communication instance." />
    </element>
    <element id="Communication.payload:payloadSubject">
      <path value="Communication.payload" />
      <sliceName value="payloadSubject" />
    </element>
    <element id="Communication.payload:payloadSubject.id">
      <path value="Communication.payload.id" />
      <fixedString value="payloadSubject" />
    </element>
    <element id="Communication.payload:attachments">
      <path value="Communication.payload" />
      <sliceName value="attachments" />
    </element>
    <element id="Communication.payload:attachments.contentAttachment:contentAttachment">
      <path value="Communication.payload.contentAttachment" />
      <sliceName value="contentAttachment" />
      <min value="1" />
      <max value="1" />
    </element>
  </differential>
</StructureDefinition>