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HL7® Austria FHIR® Core Implementation Guide
2.1.0 - STU3

HL7® Austria FHIR® Core Implementation Guide, published by HL7® Austria, TC FHIR®. This guide is not an authorized publication; it is the continuous build for version 2.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7Austria/HL7-AT-FHIR-Core-R5/ and changes regularly. See the Directory of published versions

Extension: Address Additional Information

Official URL: https://fhir.hl7.at/core/r5/StructureDefinition/at-core-ext-address-additionalInformation Version: 2.1.0
Active as of 2026-10-20 Computable Name: AddressAdditionalInformation

HL7® Austria FHIR® Core Extension for the additional information part of the Austrian address.

Context of Use

    This extension may be used on the following element(s)

    • Element ID: Address.line
    • Element ID: https://fhir.hl7.at/core/r5/StructureDefinition/at-core-address#Address.line

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional address information (Adresszusatz)
Extension.extension 0..0 Extension
Extension.url 1..1 uri "https://fhir.hl7.at/core/r5/StructureDefinition/at-core-ext-address-additionalInformation"
Extension.value[x] 1..1 string Value of extension

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional address information (Adresszusatz)
Extension.id 0..1 id Unique id for inter-element referencing
Extension.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.url 1..1 uri "https://fhir.hl7.at/core/r5/StructureDefinition/at-core-ext-address-additionalInformation"
Extension.value[x] 1..1 string Value of extension

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Extension

Summary

Simple Extension with the type string: HL7® Austria FHIR® Core Extension for the additional information part of the Austrian address.

Differential View

This structure is derived from Extension

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional address information (Adresszusatz)
Extension.extension 0..0 Extension
Extension.url 1..1 uri "https://fhir.hl7.at/core/r5/StructureDefinition/at-core-ext-address-additionalInformation"
Extension.value[x] 1..1 string Value of extension

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Extension 0..* Extension Additional address information (Adresszusatz)
Extension.id 0..1 id Unique id for inter-element referencing
Extension.extension 0..0 Extension
Slice: Unordered, Open by value:url

Slicing Note: The rules on this element (including its children) apply to all the slices, but are not repeated in them
Extension.url 1..1 uri "https://fhir.hl7.at/core/r5/StructureDefinition/at-core-ext-address-additionalInformation"
Extension.value[x] 1..1 string Value of extension

doco Documentation for this format

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Extension

Summary

Simple Extension with the type string: HL7® Austria FHIR® Core Extension for the additional information part of the Austrian address.

 

Other representations of profile: CSV, Excel, Schematron