Extension-iso21090-nullflavor.xml

NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="iso21090-nullFlavor"/>
  <url value="http://hl7.org/fhir/StructureDefinition/iso21090-nullFlavor"/>
  <name value="NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS"/>
  <status value="draft"/>
  <publisher value="Health Level Seven International (Modeling and Methodology)"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://www.hl7.org/Special/committees/mnm"/>
    </telecom>
  </contact>
  <date value="2012-06-24"/>
  <description value="If the value is not a proper value, indicates the reason."/>
  <fhirVersion value="1.4.0"/>
  <mapping>
    <identity value="v2"/>
    <uri value="http://hl7.org/v2"/>
    <name value="HL7 v2"/>
  </mapping>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM"/>
  </mapping>
  <kind value="datatype"/>
  <abstract value="false"/>
  <contextType value="datatype"/>
  <context value="Any"/>
  <baseType value="Extension"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/>
  <derivation value="constraint"/>
  <snapshot>
    <element>
      <path value="Extension"/>
      <short value="NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS"/>
      <definition value="If the value is not a proper value, indicates the reason."/>
      <comments value="Considerable care must be used when using nullFlavor in this context of FHIR - more than
       any other concept, this is tied to the way v3 works, and FHIR is quite different. For
       instance, there is no notion of a &quot;proper value&quot; as opposed to any other value
       in FHIR. a NullFlavor should be understood to mean, &quot;why information is missing&quot;,
       and the nulFlavors OTH, NINF, PINF, and TRC should not be used."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="v2"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="ANY.nullFlavor"/>
      </mapping>
    </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="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </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="Element.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/iso21090-nullFlavor"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element>
      <path value="Extension.valueCode"/>
      <short value="Value of extension"/>
      <definition value="Value of extension - may be a resource or one of a constrained set of the data types (see
       Extensibility in the spec for list)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <strength value="required"/>
        <description value="A collection of codes specifying why a valid value is not present"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/v3-NullFlavor"/>
        </valueSetReference>
      </binding>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element>
      <path value="Extension"/>
      <short value="NI | OTH | NINF | PINF | UNK | ASKU | NAV | NASK | TRC | MSK | NA | QS"/>
      <definition value="If the value is not a proper value, indicates the reason."/>
      <comments value="Considerable care must be used when using nullFlavor in this context of FHIR - more than
       any other concept, this is tied to the way v3 works, and FHIR is quite different. For
       instance, there is no notion of a &quot;proper value&quot; as opposed to any other value
       in FHIR. a NullFlavor should be understood to mean, &quot;why information is missing&quot;,
       and the nulFlavors OTH, NINF, PINF, and TRC should not be used."/>
      <min value="0"/>
      <max value="1"/>
      <type>
        <code value="Extension"/>
      </type>
      <mapping>
        <identity value="v2"/>
        <map value="n/a"/>
      </mapping>
      <mapping>
        <identity value="rim"/>
        <map value="ANY.nullFlavor"/>
      </mapping>
    </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/iso21090-nullFlavor"/>
    </element>
    <element>
      <path value="Extension.value[x]"/>
      <min value="1"/>
      <type>
        <code value="code"/>
      </type>
      <binding>
        <strength value="required"/>
        <description value="A collection of codes specifying why a valid value is not present"/>
        <valueSetReference>
          <reference value="http://hl7.org/fhir/ValueSet/v3-NullFlavor"/>
        </valueSetReference>
      </binding>
    </element>
  </differential>
</StructureDefinition>