| Source Element | Usage | Target |
| ActivityDefinition.id | UseElementSameName | ActivityDefinition.id |
| ActivityDefinition.meta | UseElementSameName | ActivityDefinition.meta |
| ActivityDefinition.implicitRules | UseElementSameName | ActivityDefinition.implicitRules |
| ActivityDefinition.language | UseElementSameName | ActivityDefinition.language |
| ActivityDefinition.text | UseElementSameName | ActivityDefinition.text |
| ActivityDefinition.contained | UseElementSameName | ActivityDefinition.contained |
| ActivityDefinition.extension | UseElementSameName | ActivityDefinition.extension |
| ActivityDefinition.modifierExtension | UseElementSameName | ActivityDefinition.modifierExtension |
| ActivityDefinition.url | UseElementSameName | ActivityDefinition.url |
| ActivityDefinition.identifier | UseElementSameName | ActivityDefinition.identifier |
| ActivityDefinition.version | UseElementSameName | ActivityDefinition.version |
| ActivityDefinition.name | UseElementSameName | ActivityDefinition.name |
| ActivityDefinition.title | UseElementSameName | ActivityDefinition.title |
| ActivityDefinition.status | UseElementSameName | ActivityDefinition.status |
| ActivityDefinition.experimental | UseElementSameName | ActivityDefinition.experimental |
| ActivityDefinition.date | UseElementSameName | ActivityDefinition.date |
| ActivityDefinition.publisher | UseElementSameName | ActivityDefinition.publisher |
| ActivityDefinition.description | UseElementSameName | ActivityDefinition.description |
| ActivityDefinition.purpose | UseElementSameName | ActivityDefinition.purpose |
| ActivityDefinition.usage | UseElementSameName | ActivityDefinition.usage |
| ActivityDefinition.approvalDate | UseElementSameName | ActivityDefinition.approvalDate |
| ActivityDefinition.lastReviewDate | UseElementSameName | ActivityDefinition.lastReviewDate |
| ActivityDefinition.effectivePeriod | UseElementSameName | ActivityDefinition.effectivePeriod |
| ActivityDefinition.useContext | UseElementSameName | ActivityDefinition.useContext |
| ActivityDefinition.jurisdiction | UseElementSameName | ActivityDefinition.jurisdiction |
| ActivityDefinition.topic | UseElementSameName | ActivityDefinition.topic |
| ActivityDefinition.contributor | UseOneOfElements | ActivityDefinition.author,ActivityDefinition.editor,ActivityDefinition.reviewer,ActivityDefinition.endorser |
| ActivityDefinition.contact | UseElementSameName | ActivityDefinition.contact |
| ActivityDefinition.copyright | UseElementSameName | ActivityDefinition.copyright |
| ActivityDefinition.relatedArtifact | UseElementSameName | ActivityDefinition.relatedArtifact |
| ActivityDefinition.library | UseExtension | http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.library |
| ActivityDefinition.kind | UseElementSameName | ActivityDefinition.kind |
| ActivityDefinition.code | UseElementSameName | ActivityDefinition.code |
| ActivityDefinition.timing[x] | UseElementSameName | ActivityDefinition.timing[x] |
| ActivityDefinition.location | UseElementSameName | ActivityDefinition.location |
| ActivityDefinition.participant | UseElementSameName | ActivityDefinition.participant |
| ActivityDefinition.participant.id | UseElementSameName | ActivityDefinition.participant.id |
| ActivityDefinition.participant.extension | UseElementSameName | ActivityDefinition.participant.extension |
| ActivityDefinition.participant.modifierExtension | UseElementSameName | ActivityDefinition.participant.modifierExtension |
| ActivityDefinition.participant.type | UseElementSameName | ActivityDefinition.participant.type |
| ActivityDefinition.participant.role | UseElementSameName | ActivityDefinition.participant.role |
| ActivityDefinition.product[x] | UseElementSameName | ActivityDefinition.product[x] |
| ActivityDefinition.quantity | UseElementSameName | ActivityDefinition.quantity |
| ActivityDefinition.dosage | UseElementSameName | ActivityDefinition.dosage |
| ActivityDefinition.bodySite | UseElementSameName | ActivityDefinition.bodySite |
| ActivityDefinition.transform | UseExtension | http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.transform |
| ActivityDefinition.dynamicValue | UseElementSameName | ActivityDefinition.dynamicValue |
| ActivityDefinition.dynamicValue.id | UseElementSameName | ActivityDefinition.dynamicValue.id |
| ActivityDefinition.dynamicValue.extension | UseElementSameName | ActivityDefinition.dynamicValue.extension |
| ActivityDefinition.dynamicValue.modifierExtension | UseElementSameName | ActivityDefinition.dynamicValue.modifierExtension |
| ActivityDefinition.dynamicValue.description | UseExtension | http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.dynamicValue.description |
| ActivityDefinition.dynamicValue.path | UseElementSameName | ActivityDefinition.dynamicValue.path |
| ActivityDefinition.dynamicValue.language | UseExtension | http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.dynamicValue.language |
| ActivityDefinition.dynamicValue.expression | UseExtension | http://hl7.org/fhir/3.0/StructureDefinition/extension-ActivityDefinition.dynamicValue.expression |