| Source Element | Usage | Target |
| ExtendedContactDetail | UseExtension | http://hl7.org/fhir/5.0/StructureDefinition/extension-ExtendedContactDetail |
| ExtendedContactDetail.id | UseExtensionFromAncestor | - |
| ExtendedContactDetail.extension | UseExtensionFromAncestor | - |
| ExtendedContactDetail.purpose | UseExtensionFromAncestor | - |
| ExtendedContactDetail.name | UseExtensionFromAncestor | - |
| ExtendedContactDetail.telecom | UseExtensionFromAncestor | - |
| ExtendedContactDetail.address | UseExtensionFromAncestor | - |
| ExtendedContactDetail.organization | UseExtensionFromAncestor | - |
| ExtendedContactDetail.period | UseExtensionFromAncestor | - |