The following HL7 Core-defined Extensions have been agreed as suitable to be included for use with the UK Core Profiles because the use case for an Extension is fully met by a pre-existing HL7 Core-defined Extension. All other HL7 core-defined extensions MAY be used to extend the UK Core if required by the local implementation.
| HL7 Core-defined Extension | Context of Use | Related Profile | Modifier Extension |
|---|---|---|---|
| Extension coding-sctdescid | Coding | Use on Element ID Coding | NO |
| Extension messageheader-response-request | MessageHeader | Profile UKCore-MessageHeader | NO |
| Extension organization-period | Organization | Profile UKCore-Organization | NO |
| Extension patient-birthPlace | Patient | Profile UKCore-Patient | NO |
| Extension patient-birthTime | Patient.birthDate | Profile UKCore-Patient | NO |
| Extension patient-cadavericDonor | Patient | Profile UKCore-Patient | NO |
| Extension patient-interpreterRequired | Patient | Profile UKCore-Patient | NO |
| Extension specimen-specialHandling | Specimen.collection | Profile UKCore-Specimen | NO |