The following R5 elements have been agreed as suitable to be included for use with the UK Core Profiles because the use case for pre-adopting an R5 element as an Extension, rather than creating a UK Core specific extension is fully met.
As of 19/05/2023, the package to enable pre-adopted elements to function as per the guidance, is not available. To enable rendering and validation of these pre-adopted elements, we have provided UK Core proxy extensions, as per the current threads on chat.fhir.org, with the R5 canonical urls. These proxy extensions will be retired once the HL7 package is released.