Extension 
url 
value[x] 
extension system Example General: http://www.acme.com/identifiers/patient
value Example General: 123456
Documentation for this formatThis is the set of resources that conform to either of the profiles PatientIDExtension (https://gematik.de/fhir/epa-medication/StructureDefinition/patient-id-extension) and PatientIDExtension (https://gematik.de/fhir/epa-medication/StructureDefinition/patient-id-extension). E.g. what you have to deal with if you get resources conforming to one of them
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension | 0..* | Extension | ||
| url | 1..1 | uri | identifies the meaning of the extension | |
| value[x] | 1..1 | Identifier | Value of extension | |
| extension | 0..* | Extension | Additional content defined by implementations | |
| system | Σ | 0..1 | uri | The namespace for the identifier value Example General: http://www.acme.com/identifiers/patient |
| value | Σ | 1..1 | string | Patienten-ID Example General: 123456 |
| Documentation for this format | ||||