http://hl7.org/fhir/StructureDefinition/regex|5.2.0
A regular expression that defines the syntax for the data element to be considered valid.
| element_id | types |
|---|---|
| Extension | |
| Extension.extension | |
| Extension.url | |
| Extension.value[x] | |
| Extension | |
| Extension.id | |
| Extension.extension | |
| Extension.url | |
| Extension.value[x] |