<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="minLength" />
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir" />
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="1" />
  </extension>
  <url value="http://hl7.org/fhir/StructureDefinition/minLength" />
  <name value="minLength" />
  <status value="draft" />
  <date value="2014-04-27" />
  <publisher value="Health Level Seven International (FHIR Infrastructure)" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="http://www.hl7.org/Special/committees/fiwg" />
    </telecom>
  </contact>
  <description value="The minimum number of characters that must be present in the simple data type to be considered a &quot;valid&quot; instance." />
  <fhirVersion value="3.0.1" />
  <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>
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="Questionnaire.item" />
  <context value="ElementDefinition" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="At least this many characters" />
      <definition value="The minimum number of characters that must be present in the simple data type to be considered a &quot;valid&quot; instance." />
      <comment value="For base64binary, reflects the number of characters representing the encoded data, not the number of bytes of the binary data." />
      <min value="0" />
      <max value="1" />
      <mapping>
        <identity value="v2" />
        <map value="N/A" />
      </mapping>
      <mapping>
        <identity value="rim" />
        <map value="N/A (MIF-level)" />
      </mapping>
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/minLength" />
    </element>
    <element id="Extension.valueInteger">
      <path value="Extension.valueInteger" />
      <type>
        <code value="integer" />
      </type>
    </element>
  </differential>
</StructureDefinition>