Lookup for FHIR R5 Flag for use in FHIR R4B
| Source Element | Usage | Target |
| Flag.id | UseElementSameName | Flag.id |
| Flag.meta | UseElementSameName | Flag.meta |
| Flag.implicitRules | UseElementSameName | Flag.implicitRules |
| Flag.language | UseElementSameName | Flag.language |
| Flag.text | UseElementSameName | Flag.text |
| Flag.contained | UseElementSameName | Flag.contained |
| Flag.extension | UseElementSameName | Flag.extension |
| Flag.modifierExtension | UseElementSameName | Flag.modifierExtension |
| Flag.identifier | UseElementSameName | Flag.identifier |
| Flag.status | UseElementSameName | Flag.status |
| Flag.category | UseElementSameName | Flag.category |
| Flag.code | UseElementSameName | Flag.code |
| Flag.subject | UseElementSameName | Flag.subject |
| Flag.period | UseElementSameName | Flag.period |
| Flag.encounter | UseElementSameName | Flag.encounter |
| Flag.author | UseElementSameName | Flag.author |