http://hl7.org/fhir/StructureDefinition/tz-code|4.0.1
An IANA timezone code for the timezone offset per [BCP 175](https://www.iana.org/go/rfc6557). The offset is specified as part of a dateTime/instant (or using the tzOffset extension on a date if necessary). The timezone code may also be provided to allow for human display of the location associated with the offset.
| type | destination |
|---|---|
| baseDefinition | http://hl7.org/fhir/StructureDefinition/Extension |
| type | http://hl7.org/fhir/StructureDefinition/Extension |
| Extension.value[x].type | http://hl7.org/fhir/StructureDefinition/code |
| Extension.value[x].binding.valueSet | http://hl7.org/fhir/ValueSet/timezones | 4.0.1 |