Name Flags Card. Type Description & Constraints doco
. . DocumentReference 0 .. * MinimalDocumentReference A reference to a document
. . . subject 1..1 Reference(DDCC Patient) Who/what is the subject of the document
. . . . reference S 1..1 string Literal reference, Relative, internal or absolute URL
. . . date 1..1 instant When this document reference was created
. . . content S 1 .. 1 BackboneElement Document referenced
. . . . attachment
. . . . . url S 1 .. 1 url Uri where the data can be found
. . . . . hash S 0 .. 1 base64Binary Hash of the data (sha-1, base64ed)

doco Documentation for this format
<status value="active" /> <date value="2021-10-06T12:30:04+00:00" /> <publisher value="World Health Organization (WHO)" /> <contact> <telecom> <system value="url" /> <value value="https://www.who.int" /> </telecom> </contact> <description value="A [DDCC Document Reference](StructureDefinition-DDCCDocumentReference.html) is a document reference to a [DDCC Document](StructureDefinition-DDCCDocument.html) containing the DDCC. The content attachment url will point to a DDCC Document." /> <fhirVersion value="4.0.1" /> <mapping> <identity value="workflow" /> <uri value="http://hl7.org/fhir/workflow" /> <name value="Workflow Pattern" /> </mapping> <mapping> <identity value="fhircomposition" /> <uri value="http://hl7.org/fhir/composition" /> <name value="FHIR Composition" /> </mapping> <mapping> <identity value="rim" /> <uri value="http://hl7.org/v3" /> <name value="RIM Mapping" /> </mapping> <mapping> <identity value="cda" /> <uri value="http://hl7.org/v3/cda" /> <name value="CDA (R2)" /> </mapping> <mapping> <identity value="w5" /> <uri value="http://hl7.org/fhir/fivews" /> <name value="FiveWs Pattern Mapping" /> </mapping> <mapping> <identity value="v2" /> <uri value="http://hl7.org/v2" /> <name value="HL7 v2 Mapping" /> </mapping> <mapping> <identity value="xds" /> <uri value="http://ihe.net/xds" /> <name value="XDS metadata equivalent" /> </mapping> <mapping> <identity value="DocumentEntry-Mapping" /> <uri value="XDS" /> <name value="XDS and MHD Mapping" /> </mapping> <kind value="resource" /> <abstract value="false" /> <type value="DocumentReference" /> <baseDefinition value="http://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.Minimal.DocumentReference" /> <derivation value="constraint" /> <differential> <element id="DocumentReference"> <path value="DocumentReference" /> </element> <element id="DocumentReference.subject"> <path value="DocumentReference.subject" /> <min value="1" /> <type> <code value="Reference" /> <targetProfile value="http://worldhealthorganization.github.io/ddcc/StructureDefinition/DDCCPatient" /> </type> </element> <element id="DocumentReference.subject.reference"> <path value="DocumentReference.subject.reference" /> <min value="1" /> <mustSupport value="true" /> </element> <element id="DocumentReference.date"> <path value="DocumentReference.date" /> <min value="1" /> </element> <element id="DocumentReference.content"> <path value="DocumentReference.content" /> <mustSupport value="true" /> </element> <element id="DocumentReference.content.attachment.url"> <path value="DocumentReference.content.attachment.url" /> <mustSupport value="true" /> </element> <element id="DocumentReference.content.attachment.hash"> <path value="DocumentReference.content.attachment.hash" /> <mustSupport value="true" /> </element> </differential> </StructureDefinition>