Lookup for FHIR R3 ContactPoint for use in FHIR R4

Source ElementUsageTarget
ContactPoint.idUseElementSameNameContactPoint.id
ContactPoint.extensionUseElementSameNameContactPoint.extension
ContactPoint.systemUseElementSameNameContactPoint.system
ContactPoint.valueUseElementSameNameContactPoint.value
ContactPoint.useUseElementSameNameContactPoint.use
ContactPoint.rankUseElementSameNameContactPoint.rank
ContactPoint.periodUseElementSameNameContactPoint.period