<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="blood-pressure" />
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-category">
    <valueString value="Clinical.Diagnostics" />
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-security-category">
    <valueCode value="patient" />
  </extension>
  <url value="https://www.netzwerk-universitaetsmedizin.de/fhir/StructureDefinition/blood-pressure" />
  <version value="1.0.6" />
  <name value="BloodPressure" />
  <title value="Blood Pressure" />
  <status value="active" />
  <experimental value="false" />
  <date value="2021-05-17" />
  <publisher value="Berlin Institute of Health at Charité (BIH)" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="https://www.bihealth.org/en/research/core-facilities/interoperability/" />
    </telecom>
  </contact>
  <description value="The blood pressure of a patient." />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="workflow" />
    <uri value="http://hl7.org/fhir/workflow" />
    <name value="Workflow Pattern" />
  </mapping>
  <mapping>
    <identity value="sct-concept" />
    <uri value="http://snomed.info/conceptdomain" />
    <name value="SNOMED CT Concept Domain Binding" />
  </mapping>
  <mapping>
    <identity value="v2" />
    <uri value="http://hl7.org/v2" />
    <name value="HL7 v2 Mapping" />
  </mapping>
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <mapping>
    <identity value="w5" />
    <uri value="http://hl7.org/fhir/fivews" />
    <name value="FiveWs Pattern Mapping" />
  </mapping>
  <mapping>
    <identity value="sct-attr" />
    <uri value="http://snomed.org/attributebinding" />
    <name value="SNOMED CT Attribute Binding" />
  </mapping>
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="https://www.netzwerk-universitaetsmedizin.de/fhir/StructureDefinition/vital-signs-base" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.code.coding">
      <path value="Observation.code.coding" />
      <slicing>
        <discriminator>
          <type value="pattern" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="Observation.code.coding:loinc">
      <path value="Observation.code.coding" />
      <sliceName value="loinc" />
      <min value="1" />
      <max value="*" />
      <patternCoding>
        <system value="http://loinc.org" />
        <code value="85354-9" />
      </patternCoding>
    </element>
    <element id="Observation.code.coding:loinc.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding:loinc.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding:snomed">
      <path value="Observation.code.coding" />
      <sliceName value="snomed" />
      <min value="0" />
      <max value="*" />
      <patternCoding>
        <system value="http://snomed.info/sct" />
        <code value="75367002" />
      </patternCoding>
    </element>
    <element id="Observation.code.coding:snomed.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.code.coding:snomed.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <max value="0" />
    </element>
    <element id="Observation.component">
      <path value="Observation.component" />
      <slicing>
        <discriminator>
          <type value="pattern" />
          <path value="code" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <short value="Used when reporting systolic and diastolic blood pressure." />
      <definition value="Used when reporting systolic and diastolic blood pressure." />
      <min value="2" />
      <constraint>
        <key value="vs-3" />
        <severity value="error" />
        <human value="If there is no a value a data absent reason must be present" />
        <expression value="value.exists() or dataAbsentReason.exists()" />
        <xpath value="f:*[starts-with(local-name(.), 'value')] or f:dataAbsentReason" />
        <source value="https://www.netzwerk-universitaetsmedizin.de/fhir/StructureDefinition/blood-pressure" />
      </constraint>
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:systolicBloodPressure">
      <path value="Observation.component" />
      <sliceName value="systolicBloodPressure" />
      <short value="Systolic blood pressure" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:systolicBloodPressure.code">
      <path value="Observation.component.code" />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="8480-6" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:systolicBloodPressure.code.coding">
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          <type value="pattern" />
          <path value="$this" />
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    <element id="Observation.component:systolicBloodPressure.code.coding:loinc.system">
      <path value="Observation.component.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.component:systolicBloodPressure.code.coding:loinc.code">
      <path value="Observation.component.code.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.component:systolicBloodPressure.code.coding:snomed">
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      <min value="0" />
      <max value="*" />
      <patternCoding>
        <system value="http://snomed.info/sct" />
        <code value="271649006" />
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    <element id="Observation.component:systolicBloodPressure.code.coding:snomed.system">
      <path value="Observation.component.code.coding.system" />
      <min value="1" />
    </element>
    <element id="Observation.component:systolicBloodPressure.code.coding:snomed.code">
      <path value="Observation.component.code.coding.code" />
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    </element>
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      <path value="Observation.component.value[x]" />
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          <type value="type" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <short value="Systolic blood pressure value" />
      <type>
        <code value="Quantity" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:systolicBloodPressure.value[x].value">
      <path value="Observation.component.value[x].value" />
      <min value="1" />
    </element>
    <element id="Observation.component:systolicBloodPressure.value[x].unit">
      <path value="Observation.component.value[x].unit" />
      <min value="1" />
    </element>
    <element id="Observation.component:systolicBloodPressure.value[x].system">
      <path value="Observation.component.value[x].system" />
      <min value="1" />
      <patternUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Observation.component:systolicBloodPressure.value[x].code">
      <path value="Observation.component.value[x].code" />
      <min value="1" />
      <patternCode value="mm[Hg]" />
    </element>
    <element id="Observation.component:diastolicBloodPressure">
      <path value="Observation.component" />
      <sliceName value="diastolicBloodPressure" />
      <short value="Diastolic blood pressure" />
      <min value="1" />
      <max value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.code">
      <path value="Observation.component.code" />
      <patternCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <code value="8462-4" />
        </coding>
      </patternCodeableConcept>
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.code.coding">
      <path value="Observation.component.code.coding" />
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        <discriminator>
          <type value="pattern" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.code.coding:loinc">
      <path value="Observation.component.code.coding" />
      <sliceName value="loinc" />
      <min value="1" />
      <max value="*" />
      <patternCoding>
        <system value="http://loinc.org" />
        <code value="8462-4" />
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    </element>
    <element id="Observation.component:diastolicBloodPressure.code.coding:loinc.system">
      <path value="Observation.component.code.coding.system" />
      <min value="1" />
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    <element id="Observation.component:diastolicBloodPressure.code.coding:loinc.code">
      <path value="Observation.component.code.coding.code" />
      <min value="1" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.code.coding:snomed">
      <path value="Observation.component.code.coding" />
      <sliceName value="snomed" />
      <min value="0" />
      <max value="*" />
      <patternCoding>
        <system value="http://snomed.info/sct" />
        <code value="271650006" />
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      <min value="1" />
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      <path value="Observation.component.code.coding.code" />
      <min value="1" />
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    <element id="Observation.component:diastolicBloodPressure.value[x]">
      <path value="Observation.component.value[x]" />
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        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
        <rules value="open" />
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      <short value="Diastolic blood pressure value" />
      <type>
        <code value="Quantity" />
      </type>
      <mustSupport value="true" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.value[x].value">
      <path value="Observation.component.value[x].value" />
      <min value="1" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.value[x].unit">
      <path value="Observation.component.value[x].unit" />
      <min value="1" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.value[x].system">
      <path value="Observation.component.value[x].system" />
      <min value="1" />
      <patternUri value="http://unitsofmeasure.org" />
    </element>
    <element id="Observation.component:diastolicBloodPressure.value[x].code">
      <path value="Observation.component.value[x].code" />
      <min value="1" />
      <patternCode value="mm[Hg]" />
    </element>
  </differential>
</StructureDefinition>