More information about the extensions can be found using the links below.
| Extension | Context | Link | Comment | 
|---|---|---|---|
| parentPresent | Immunization | Extension UKCore-ParentPresent | Indicates if a parent was present at an immunisation. | 
| vaccinationProcedure | Immunization | Extension UKCore-VaccinationProcedure | to hold an immunisation procedure code. This extension SHOULD be used when  This relates to the vaccine that was administered (procedure) and SHOULD be a SNOMED CT from ValueSet UKCore-VaccinationProcedure |