<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="profile-Observation-note-base" />
  <url value="https://bpcs.exchange/fhir/StructureDefinition/profile-Observation-note-base" />
  <name value="ObservationNoteBase" />
  <title value="Observation Note Base Profile" />
  <status value="active" />
  <experimental value="false" />
  <description value="An abstract profile that for observation notes that covers common elements independent of type of operation" />
  <fhirVersion value="5.0.0" />
  <mapping>
    <identity value="BPCS" />
    <name value="Internal BPCS API" />
  </mapping>
  <kind value="resource" />
  <abstract value="true" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.status">
      <path value="Observation.status" />
      <comment value="This SHALL be 'final' when recording a new note" />
      <mustSupport value="true" />
      <binding>
        <strength value="required" />
        <valueSet value="https://bpcs.exchange/fhir/ValueSet/vs-ObservationNoteStatus" />
      </binding>
    </element>
    <element id="Observation.category">
      <path value="Observation.category" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.category:note">
      <path value="Observation.category" />
      <sliceName value="note" />
      <short value="This is a 'note'" />
      <min value="1" />
      <max value="1" />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="34109-9" />
        </coding>
      </patternCodeableConcept>
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <short value="Note type" />
      <comment value="The binding is extensible to allow for the addition of new codes.  Codes must be found in the current expansion of the value set." />
      <mustSupport value="true" />
      <binding>
        <strength value="extensible" />
        <valueSet value="https://bpcs.exchange/fhir/ValueSet/vs-NoteCode" />
      </binding>
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <min value="1" />
      <type>
        <code value="Reference" />
        <profile value="https://bpcs.exchange/fhir/StructureDefinition/profile-Reference-rest" />
        <targetProfile value="https://bpcs.exchange/fhir/StructureDefinition/profile-Patient-search" />
        <targetProfile value="https://bpcs.exchange/fhir/StructureDefinition/profile-Group" />
      </type>
      <mustSupport value="true" />
      <mapping>
        <identity value="BPCS" />
        <map value="ApplicationNoteDTO.applicationNum (when it's an odbNum)" />
      </mapping>
    </element>
    <element id="Observation.focus">
      <path value="Observation.focus" />
      <type>
        <code value="Reference" />
        <profile value="https://bpcs.exchange/fhir/StructureDefinition/profile-Reference-rest" />
        <targetProfile value="https://bpcs.exchange/fhir/StructureDefinition/profile-Coverage-family" />
      </type>
      <mustSupport value="true" />
      <mapping>
        <identity value="BPCS" />
        <map value="ApplicationNoteDTO.applicationNum (when it's actually an application number)" />
      </mapping>
    </element>
    <element id="Observation.effective[x]">
      <path value="Observation.effective[x]" />
      <min value="1" />
      <type>
        <code value="dateTime" />
        <profile value="https://bpcs.exchange/fhir/StructureDefinition/profile-dateTime-date" />
      </type>
      <mustSupport value="true" />
      <mapping>
        <identity value="BPCS" />
        <map value="ApplicationNoteDTO.activityDate" />
      </mapping>
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <slicing>
        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
        <rules value="closed" />
      </slicing>
      <short value="Note text" />
      <min value="1" />
      <type>
        <code value="string" />
      </type>
      <type>
        <code value="boolean" />
      </type>
      <mustSupport value="true" />
      <mapping>
        <identity value="BPCS" />
        <map value="ApplicationNoteDTO.note" />
      </mapping>
    </element>
    <element id="Observation.value[x]:valueBoolean">
      <path value="Observation.value[x]" />
      <sliceName value="valueBoolean" />
      <type>
        <code value="boolean" />
      </type>
      <patternBoolean value="true" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.value[x]:valueString">
      <path value="Observation.value[x]" />
      <sliceName value="valueString" />
      <type>
        <code value="string" />
      </type>
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>