| Source Element | Usage | Target |
| DocumentReference.id | UseElementSameName | DocumentReference.id |
| DocumentReference.meta | UseElementSameName | DocumentReference.meta |
| DocumentReference.implicitRules | UseElementSameName | DocumentReference.implicitRules |
| DocumentReference.language | UseElementSameName | DocumentReference.language |
| DocumentReference.text | UseElementSameName | DocumentReference.text |
| DocumentReference.contained | UseElementSameName | DocumentReference.contained |
| DocumentReference.extension | UseElementSameName | DocumentReference.extension |
| DocumentReference.modifierExtension | UseElementSameName | DocumentReference.modifierExtension |
| DocumentReference.masterIdentifier | UseElementRenamed | DocumentReference.identifier |
| DocumentReference.identifier | UseElementSameName | DocumentReference.identifier |
| DocumentReference.subject | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.subject |
| DocumentReference.type | UseElementSameName | DocumentReference.type |
| DocumentReference.class | UseElementRenamed | DocumentReference.category |
| DocumentReference.author | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.author |
| DocumentReference.custodian | UseElementSameName | DocumentReference.custodian |
| DocumentReference.authenticator | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.authenticator |
| DocumentReference.created | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.created |
| DocumentReference.indexed | UseElementRenamed | DocumentReference.date |
| DocumentReference.status | UseElementSameName | DocumentReference.status |
| DocumentReference.docStatus | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.docStatus |
| DocumentReference.relatesTo | UseElementSameName | DocumentReference.relatesTo |
| DocumentReference.relatesTo.id | UseElementSameName | DocumentReference.relatesTo.id |
| DocumentReference.relatesTo.extension | UseElementSameName | DocumentReference.relatesTo.extension |
| DocumentReference.relatesTo.modifierExtension | UseElementSameName | DocumentReference.relatesTo.modifierExtension |
| DocumentReference.relatesTo.code | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.relatesTo.code |
| DocumentReference.relatesTo.target | UseElementSameName | DocumentReference.relatesTo.target |
| DocumentReference.description | UseElementSameName | DocumentReference.description |
| DocumentReference.securityLabel | UseElementSameName | DocumentReference.securityLabel |
| DocumentReference.content | UseElementSameName | DocumentReference.content |
| DocumentReference.content.id | UseElementSameName | DocumentReference.content.id |
| DocumentReference.content.extension | UseElementSameName | DocumentReference.content.extension |
| DocumentReference.content.modifierExtension | UseElementSameName | DocumentReference.content.modifierExtension |
| DocumentReference.content.attachment | UseElementSameName | DocumentReference.content.attachment |
| DocumentReference.content.format | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.content.format |
| DocumentReference.context | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DocumentReference.context |
| DocumentReference.context.id | UseExtensionFromAncestor | - |
| DocumentReference.context.extension | UseExtensionFromAncestor | - |
| DocumentReference.context.modifierExtension | UseExtensionFromAncestor | - |
| DocumentReference.context.encounter | UseExtensionFromAncestor | - |
| DocumentReference.context.event | UseExtensionFromAncestor | - |
| DocumentReference.context.period | UseExtensionFromAncestor | - |
| DocumentReference.context.facilityType | UseExtensionFromAncestor | - |
| DocumentReference.context.practiceSetting | UseExtensionFromAncestor | - |
| DocumentReference.context.sourcePatientInfo | UseExtensionFromAncestor | - |
| DocumentReference.context.related | UseExtensionFromAncestor | - |
| DocumentReference.context.related.id | UseExtensionFromAncestor | - |
| DocumentReference.context.related.extension | UseExtensionFromAncestor | - |
| DocumentReference.context.related.modifierExtension | UseExtensionFromAncestor | - |
| DocumentReference.context.related.identifier | UseExtensionFromAncestor | - |
| DocumentReference.context.related.ref | UseExtensionFromAncestor | - |