| Source Element | Usage | Target |
| Immunization.id | UseElementSameName | Immunization.id |
| Immunization.meta | UseElementSameName | Immunization.meta |
| Immunization.implicitRules | UseElementSameName | Immunization.implicitRules |
| Immunization.language | UseElementSameName | Immunization.language |
| Immunization.text | UseElementSameName | Immunization.text |
| Immunization.contained | UseElementSameName | Immunization.contained |
| Immunization.extension | UseElementSameName | Immunization.extension |
| Immunization.modifierExtension | UseElementSameName | Immunization.modifierExtension |
| Immunization.identifier | UseElementSameName | Immunization.identifier |
| Immunization.status | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.status |
| Immunization.date | UseElementRenamed | Immunization.occurrence[x] |
| Immunization.vaccineCode | UseElementSameName | Immunization.vaccineCode |
| Immunization.patient | UseElementSameName | Immunization.patient |
| Immunization.wasNotGiven | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.wasNotGiven |
| Immunization.reported | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.reported |
| Immunization.performer | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.performer |
| Immunization.requester | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.requester |
| Immunization.encounter | UseElementSameName | Immunization.encounter |
| Immunization.manufacturer | UseElementSameName | Immunization.manufacturer |
| Immunization.location | UseElementSameName | Immunization.location |
| Immunization.lotNumber | UseElementSameName | Immunization.lotNumber |
| Immunization.expirationDate | UseElementSameName | Immunization.expirationDate |
| Immunization.site | UseElementSameName | Immunization.site |
| Immunization.route | UseElementSameName | Immunization.route |
| Immunization.doseQuantity | UseElementSameName | Immunization.doseQuantity |
| Immunization.note | UseElementSameName | Immunization.note |
| Immunization.explanation | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.explanation |
| Immunization.explanation.id | UseExtensionFromAncestor | - |
| Immunization.explanation.extension | UseExtensionFromAncestor | - |
| Immunization.explanation.modifierExtension | UseExtensionFromAncestor | - |
| Immunization.explanation.reason | UseExtensionFromAncestor | - |
| Immunization.explanation.reasonNotGiven | UseExtensionFromAncestor | - |
| Immunization.reaction | UseElementSameName | Immunization.reaction |
| Immunization.reaction.id | UseElementSameName | Immunization.reaction.id |
| Immunization.reaction.extension | UseElementSameName | Immunization.reaction.extension |
| Immunization.reaction.modifierExtension | UseElementSameName | Immunization.reaction.modifierExtension |
| Immunization.reaction.date | UseElementSameName | Immunization.reaction.date |
| Immunization.reaction.detail | UseElementSameName | Immunization.reaction.detail |
| Immunization.reaction.reported | UseElementSameName | Immunization.reaction.reported |
| Immunization.vaccinationProtocol | UseElementRenamed | Immunization.protocolApplied |
| Immunization.vaccinationProtocol.id | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.id |
| Immunization.vaccinationProtocol.extension | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.extension |
| Immunization.vaccinationProtocol.modifierExtension | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.modifierExtension |
| Immunization.vaccinationProtocol.doseSequence | UseElementRenamed | Immunization.protocolApplied.doseNumber[x] |
| Immunization.vaccinationProtocol.description | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.description |
| Immunization.vaccinationProtocol.authority | UseElementRenamed | Immunization.protocolApplied.authority |
| Immunization.vaccinationProtocol.series | UseElementRenamed | Immunization.protocolApplied.series |
| Immunization.vaccinationProtocol.seriesDoses | UseElementRenamed | Immunization.protocolApplied.seriesDoses[x] |
| Immunization.vaccinationProtocol.targetDisease | UseElementRenamed | Immunization.protocolApplied.targetDisease |
| Immunization.vaccinationProtocol.doseStatus | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.doseStatus |
| Immunization.vaccinationProtocol.doseStatusReason | UseExtension | http://hl7.org/fhir/1.0/StructureDefinition/extension-Immunization.vaccinationProtocol.doseStatusReason |