Extension-openehr-exposureduration.xml

Amount of time individual was exposed to Substance

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="openEHR-exposureDuration"/>
  <url value="http://hl7.org/fhir/StructureDefinition/openEHR-exposureDuration"/>
  <name value="Amount of time individual was exposed to Substance"/>
  <status value="draft"/>
  <publisher value="Health Level Seven, Inc / openEHR project"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://hl7.org"/>
    </telecom>
  </contact>
  <date value="2014-10-09"/>
  <description value="The amount of time the individual was exposed to the Substance."/>
  <fhirVersion value="1.0.2"/>
  <kind value="datatype"/>
  <constrainedType value="Extension"/>
  <abstract value="false"/>
  <contextType value="resource"/>
  <context value="AllergyIntolerance.reaction"/>
  <base value="http://hl7.org/fhir/StructureDefinition/Extension"/>
  <snapshot>
    <element>
      <path value="Extension"/>
      <short value="Amount of time individual was exposed to Substance"/>
      <definition value="The amount of time the individual was exposed to the Substance."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
    </element>
    <element>
      <path value="Extension.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references)."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension.id"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="id"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.extension"/>
      <name value="extension"/>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Extension.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
    </element>
    <element>
      <path value="Extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition value="Source of the definition for the extension code - a logical name or a URL."/>
      <comments value="The definition may point directly to a computable or human-readable definition of the
       extensibility codes, or it may be a logical URI as declared in some other specification.
       The definition should be version specific.  This will ideally be the URI for the Resource
       Profile defining the extension, with the code for the extension after a #."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/openEHR-exposureDuration"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.valueQuantity"/>
      <short value="A length of time"/>
      <definition value="There SHALL be a code if there is a value and it SHALL be an expression of time.  If system
       is present, it SHALL be UCUM."/>
      <comments value="The context of use may frequently define what kind of quantity this is and therefore what
       kind of units can be used. The context of use may also restrict the values for the comparator."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="Quantity"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/Duration"/>
      </type>
      <constraint>
        <key value="qty-3"/>
        <severity value="error"/>
        <human value="If a code for the unit is present, the system SHALL also be present"/>
        <xpath value="not(exists(f:code)) or exists(f:system)"/>
      </constraint>
      <constraint>
        <key value="drt-1"/>
        <severity value="error"/>
        <human value="There SHALL be a code if there is a value and it SHALL be an expression of time.  If system
         is present, it SHALL be UCUM."/>
        <xpath value="(f:code or not(f:value)) and (not(exists(f:system)) or f:system/@value='http://unitsofmeasure.org')"/>
      </constraint>
      <isSummary value="true"/>
      <mapping>
        <identity value="v2"/>
        <map value="SN (see also Range) or CQ"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="PQ, IVL&lt;PQ&gt;, MO, CO, depending on the values"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="Extension"/>
      <short value="Amount of time individual was exposed to Substance"/>
      <definition value="The amount of time the individual was exposed to the Substance."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Extension"/>
      </type>
    </element>
    <element>
      <path value="Extension.extension"/>
      <name value="extension"/>
      <max value="0"/>
    </element>
    <element>
      <path value="Extension.url"/>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/openEHR-exposureDuration"/>
    </element>
    <element>
      <path value="Extension.value[x]"/>
      <min value="1"/>
      <type>
        <code value="Quantity"/>
        <profile value="http://hl7.org/fhir/StructureDefinition/Duration"/>
      </type>
    </element>
  </differential>
</StructureDefinition>