extractPolicy

<xs:attribute name="extractPolicy" use="optional">
  <xs:simpleType>
    <xs:restriction base="xs:token">
      <xs:enumeration value="firstEncounter"/>
      <xs:enumeration value="laboratory"/>
      <xs:enumeration value="prescription"/>
      <xs:enumeration value="summary"/>
      <xs:enumeration value="random"/>
      <xs:enumeration value="nonExtracted"/>
      <xs:enumeration value="other"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>