<status value="draft" /> <publisher value="Orion Health" /> <description value="Indicates a link between related resources" /> <purpose value="This extension allows resources that are related to be linked together" /> <fhirVersion value="4.0" /> <kind value="complex-type" /> <abstract value="false" /> <type value="Extension" /> <snapshot> <element id="Extension"> <path value="Extension" /> <max value="1" /> <base> <path value="Extension" /> <max value="1" /> </base> </element> <element id="Extension.url"> <path value="Extension.url" /> <base> <path value="Extension.url" /> </base> <fixedUri value="http://hl7.org/fhir/StructureDefinition/resource-related" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <short value="Indicates a link between related resources" /> <definition value="Set the ID of the resource to link to this resource" /> <comment value="Note that FHIR strings SHALL NOT exceed 1MB in size" /> <min value="1" /> <max value="1" /> <base> <path value="Extension.value[x]" /> <min value="1" /> <max value="1" /> </base> <type> <code value="string" /> </type> <condition value="ele-1" /> <constraint> <key value="ele-1" /> <severity value="error" /> <human value="All FHIR elements must have a @value or children" /> <expression value="hasValue() or (children().count() > id.count())" /> <xpath value="@value|f:*|h:div" /> <source value="http://hl7.org/fhir/StructureDefinition/Element" /> </constraint> <mapping> <identity value="rim" /> <map value="n/a" /> </mapping> </element> </snapshot> <differential> <element id="Extension"> <path value="Extension" /> <max value="1" /> </element> <element id="Extension.url"> <path value="Extension.url" /> <fixedUri value="http://hl7.org/fhir/StructureDefinition/resource-related" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <short value="Indicates a link between related resources" /> <definition value="Set the ID of the resource to link to this resource" /> <min value="1" /> <max value="1" /> <type> <code value="string" /> </type> </element> </differential> </StructureDefinition>