<status value="active" /> <experimental value="false" /> <description value="Describes a special kind of attachment that contains the data representing the thumbnail of another attachment. By default maximum allowed size of the .data element is 100KB (but depends on FHIR repository implementation)." /> <fhirVersion value="4.0.1" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Attachment" /> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Attachment" /> <derivation value="constraint" /> <differential> <element id="Attachment.contentType"> <path value="Attachment.contentType" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Attachment.data"> <path value="Attachment.data" /> <definition value="The actual data of the attachment - a sequence of bytes, represented using base64. By default maximum allowed size of the .data element is 100KB (but depends on FHIR repository implementation)." /> <min value="1" /> <mustSupport value="true" /> </element> <element id="Attachment.url"> <path value="Attachment.url" /> <max value="0" /> </element> <element id="Attachment.title"> <path value="Attachment.title" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>