<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="1892749" />
  <meta>
    <lastUpdated value="2019-05-03T10:57:40.4414907+00:00" />
  </meta>
  <url value="http://example.org/fhir/StructureDefinition/MyObservation" />
  <name value="WoundSizePosiThera" />
  <status value="draft" />
  <date value="2019-05-03T10:57:40.4105188+00:00" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation">
      <path value="Observation" />
      <definition value="Measurements and simple assertions made about a patient, device or other subject.&#xD;&#xA;---&#xD;&#xA;A draft on observation WoundSize&#xD;&#xA;&#xD;&#xA;It supports two elements of WoundSize. First length of wound and second width of wound.&#xD;&#xA;&#xD;&#xA;LOINC codes are used to encode data.&#xD;&#xA;&#xD;&#xA;---&#xD;&#xA;&#xD;&#xA;Timestamp has to be available for measure." />
    </element>
    <element id="Observation.category.coding.system">
      <path value="Observation.category.coding.system" />
      <fixedUri value="http://hl7.org/fhir/ValueSet/observation-category" />
    </element>
    <element id="Observation.category.coding.code">
      <path value="Observation.category.coding.code" />
      <fixedCode value="exam" />
    </element>
    <element id="Observation.code.coding">
      <path value="Observation.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.code.coding:woundSizeLOINC">
      <path value="Observation.code.coding" />
      <sliceName value="woundSizeLOINC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.code.coding:woundSizeLOINC.system">
      <path value="Observation.code.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.code.coding:woundSizeLOINC.code">
      <path value="Observation.code.coding.code" />
      <fixedCode value="72287-6" />
    </element>
    <element id="Observation.subject">
      <path value="Observation.subject" />
      <type>
        <code value="Reference" />
        <targetProfile value="http://hl7.org/fhir/StructureDefinition/Patient" />
      </type>
    </element>
    <element id="Observation.effective[x]:effectiveDateTime">
      <path value="Observation.effectiveDateTime" />
      <sliceName value="effectiveDateTime" />
      <definition value="A timestamp of the examination date when wound size was assessed." />
      <min value="1" />
      <type>
        <code value="dateTime" />
      </type>
    </element>
    <element id="Observation.value[x]:valueQuantity">
      <path value="Observation.valueQuantity" />
      <sliceName value="valueQuantity" />
      <max value="0" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Observation.component">
      <path value="Observation.component" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code.coding.code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:WoundLength">
      <path value="Observation.component" />
      <sliceName value="WoundLength" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundLength.code.coding">
      <path value="Observation.component.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthLOINC">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundLengthLOINC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthLOINC.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthLOINC.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="39125-0" />
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthSNOMED">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundLengthSNOMED" />
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthSNOMED.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Observation.component:WoundLength.code.coding:woundLengthSNOMED.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="401238003" />
    </element>
    <element id="Observation.component:WoundLength.value[x]:valueQuantity">
      <path value="Observation.component.valueQuantity" />
      <sliceName value="valueQuantity" />
      <min value="1" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Observation.component:WoundLength.value[x]:valueQuantity.value">
      <path value="Observation.component.valueQuantity.value" />
      <min value="1" />
    </element>
    <element id="Observation.component:WoundLength.value[x]:valueQuantity.unit">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true" />
      </extension>
      <path value="Observation.component.valueQuantity.unit" />
      <min value="1" />
      <fixedString value="cm" />
    </element>
    <element id="Observation.component:WoundLength.value[x]:valueQuantity.system">
      <path value="Observation.component.valueQuantity.system" />
      <min value="1" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Observation.component:WoundLength.value[x]:valueQuantity.code">
      <path value="Observation.component.valueQuantity.code" />
      <min value="1" />
      <fixedCode value="cm" />
    </element>
    <element id="Observation.component:WoundWidth">
      <path value="Observation.component" />
      <sliceName value="WoundWidth" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding">
      <path value="Observation.component.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthLOINC">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundWidthLOINC" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthLOINC.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthLOINC.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="39126-8" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthSNOMED">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundWidthSNOMED" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthSNOMED.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Observation.component:WoundWidth.code.coding:woundWidthSNOMED.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="401239006" />
    </element>
    <element id="Observation.component:WoundWidth.value[x]:valueQuantity">
      <path value="Observation.component.valueQuantity" />
      <sliceName value="valueQuantity" />
      <min value="1" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Observation.component:WoundWidth.value[x]:valueQuantity.value">
      <path value="Observation.component.valueQuantity.value" />
      <min value="1" />
    </element>
    <element id="Observation.component:WoundWidth.value[x]:valueQuantity.unit">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true" />
      </extension>
      <path value="Observation.component.valueQuantity.unit" />
      <min value="1" />
      <fixedString value="cm" />
    </element>
    <element id="Observation.component:WoundWidth.value[x]:valueQuantity.system">
      <path value="Observation.component.valueQuantity.system" />
      <min value="1" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Observation.component:WoundWidth.value[x]:valueQuantity.code">
      <path value="Observation.component.valueQuantity.code" />
      <fixedCode value="cm" />
    </element>
    <element id="Observation.component:WoundDepth">
      <path value="Observation.component" />
      <sliceName value="WoundDepth" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding">
      <path value="Observation.component.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthLOINC">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundDepthLOINC" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthLOINC.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthLOINC.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="39114-4" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthSNOMED">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundDepthSNOMED" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthSNOMED.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://snomed.info/sct" />
    </element>
    <element id="Observation.component:WoundDepth.code.coding:woundDepthSNOMED.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="425094009" />
    </element>
    <element id="Observation.component:WoundArea">
      <path value="Observation.component" />
      <sliceName value="WoundArea" />
      <max value="1" />
    </element>
    <element id="Observation.component:WoundArea.code.coding">
      <path value="Observation.component.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="Observation.component:WoundArea.code.coding:woundAreaLOINC">
      <path value="Observation.component.code.coding" />
      <sliceName value="woundAreaLOINC" />
    </element>
    <element id="Observation.component:WoundArea.code.coding:woundAreaLOINC.system">
      <path value="Observation.component.code.coding.system" />
      <fixedUri value="http://loinc.org" />
    </element>
    <element id="Observation.component:WoundArea.code.coding:woundAreaLOINC.code">
      <path value="Observation.component.code.coding.code" />
      <fixedCode value="89260-4" />
    </element>
    <element id="Observation.component:WoundArea.value[x]:valueQuantity">
      <path value="Observation.component.valueQuantity" />
      <sliceName value="valueQuantity" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Observation.component:WoundArea.value[x]:valueQuantity.unit">
      <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable">
        <valueBoolean value="true" />
      </extension>
      <path value="Observation.component.valueQuantity.unit" />
      <definition value="Soll in Quadradzentimetern gemessen werden, habe ich jedoch nicht unter unitsofmeasure.org gefunden.&#xD;&#xA;&#xD;&#xA;Should be given in square centimeters, however, I did not find the correct unit. Maybe it is possible to create an extention to define area of wound as length x width" />
    </element>
    <element id="Observation.component:WoundArea.value[x]:valueQuantity.system">
      <path value="Observation.component.valueQuantity.system" />
      <fixedUri value="http://unitsofmeasure.org" />
    </element>
  </differential>
</StructureDefinition>