<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="observation-time-since-last-hospitalization" />
  <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="http://hl7.org/fhir/us/mcode/StructureDefinition/observation-time-since-last-hospitalization" />
  <version value="1.0.0" />
  <name value="TimeSinceLastHospitalization" />
  <title value="Observation Time Since Last Hospitalization" />
  <status value="draft" />
  <experimental value="false" />
  <date value="2018-08-11" />
  <publisher value="Health Level Seven International (Orders and Observations Workgroup)" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://fhircat.org/fhircat" />
    </telecom>
  </contact>
  <description value="E2C2 Observation Time Since Last Hospitalization Profile" />
  <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="http://hl7.org/fhir/StructureDefinition/Observation" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation">
      <path value="Observation" />
      <short value="E2C2 Observation Time Since Last Hospitalization Profile" />
      <definition value="This profile defines time since last hospitalization." />
    </element>
    <element id="Observation.code">
      <path value="Observation.code" />
      <short value="Time Since Last Hospitalization)" />
      <definition value="Time Since Last Hospitalization" />
      <comment value="Time Since Last Hospitalization." />
      <alias value="Test" />
      <alias value="Name" />
    </element>
    <element id="Observation.code.coding">
      <path value="Observation.code.coding" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="code" />
        </discriminator>
        <discriminator>
          <type value="value" />
          <path value="system" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="Observation.code.coding:TimeSinceLastHospitalizationCode">
      <path value="Observation.code.coding" />
      <sliceName value="TimeSinceLastHospitalizationCode" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Observation.code.coding:TimeSinceLastHospitalizationCode.system">
      <path value="Observation.code.coding.system" />
      <min value="1" />
      <fixedUri value="E2C2CodeSystem" />
    </element>
    <element id="Observation.code.coding:TimeSinceLastHospitalizationCode.code">
      <path value="Observation.code.coding.code" />
      <min value="1" />
      <fixedCode value="time_since_last_hospitalization" />
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <slicing>
        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
        <ordered value="false" />
        <rules value="open" />
      </slicing>
      <min value="1" />
    </element>
    <element id="Observation.valueQuantity">
      <path value="Observation.valueQuantity" />
      <min value="1" />
      <max value="1" />
      <type>
        <code value="Quantity" />
      </type>
    </element>
    <element id="Observation.valueQuantity.value">
      <path value="Observation.valueQuantity.value" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.valueQuantity.unit">
      <path value="Observation.valueQuantity.unit" />
      <min value="1" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.valueQuantity.system">
      <path value="Observation.valueQuantity.system" />
      <min value="1" />
      <fixedUri value="http://unitsofmeasure.org" />
      <mustSupport value="true" />
    </element>
    <element id="Observation.valueQuantity.code">
      <path value="Observation.valueQuantity.code" />
      <min value="1" />
      <fixedCode value="days" />
      <mustSupport value="true" />
    </element>
  </differential>
</StructureDefinition>