| Source Element | Usage | Target |
| DiagnosticOrder.id | UseElementRenamed | ServiceRequest.id |
| DiagnosticOrder.meta | UseElementRenamed | ServiceRequest.meta |
| DiagnosticOrder.implicitRules | UseElementRenamed | ServiceRequest.implicitRules |
| DiagnosticOrder.language | UseElementRenamed | ServiceRequest.language |
| DiagnosticOrder.text | UseElementRenamed | ServiceRequest.text |
| DiagnosticOrder.contained | UseElementRenamed | ServiceRequest.contained |
| DiagnosticOrder.extension | UseElementRenamed | ServiceRequest.extension |
| DiagnosticOrder.modifierExtension | UseElementRenamed | ServiceRequest.modifierExtension |
| DiagnosticOrder.subject | UseElementRenamed | ServiceRequest.subject |
| DiagnosticOrder.orderer | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.orderer |
| DiagnosticOrder.identifier | UseElementRenamed | ServiceRequest.identifier |
| DiagnosticOrder.encounter | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.encounter |
| DiagnosticOrder.reason | UseElementRenamed | ServiceRequest.reason |
| DiagnosticOrder.supportingInformation | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.supportingInformation |
| DiagnosticOrder.specimen | UseElementRenamed | ServiceRequest.specimen |
| DiagnosticOrder.status | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.status |
| DiagnosticOrder.priority | UseElementRenamed | ServiceRequest.priority |
| DiagnosticOrder.event | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.event |
| DiagnosticOrder.event.id | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.extension | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.modifierExtension | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.status | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.description | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.dateTime | UseExtensionFromAncestor | - |
| DiagnosticOrder.event.actor | UseExtensionFromAncestor | - |
| DiagnosticOrder.item | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-DiagnosticOrder.item |
| DiagnosticOrder.item.id | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.extension | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.modifierExtension | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.code | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.specimen | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.bodySite | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.status | UseExtensionFromAncestor | - |
| DiagnosticOrder.item.event | UseExtensionFromAncestor | - |
| DiagnosticOrder.note | UseElementRenamed | ServiceRequest.note |