# Health Connect Australia Provider Directory FHIR Implementation Guide

26.0.0 - Snapshot HL7 AU Connectathon Aug 25 & 26, 2026

Health Connect Australia Provider Directory FHIR Implementation Guide, published by Australian Digital Health Agency. This guide is not an authorized publication; it is the continuous build for version 26.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/AuDigitalHealth/HCPD-Snapshot-26.0.0-HL7AU-Connectathon-Aug-25-26/ and changes regularly. See the Directory of published versions

## Extension: HCPD Alternate Postal Address

Official URL: http://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-alternate-postal-address | Version: 26.0.0
Active as of 2026-08-14 | Computable Name: HCPD_Alternate_Postal_Address
Copyright/Legal: This content is licensed under a Creative Commons Attribution 4.0 International License. See https://creativecommons.org/licenses/by/4.0/

Alternate postal/mailing address for correspondence (PO Box or mailing address) that is distinct from the registered physical address.

Context of Use

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

- Element ID: `Location`

Usage info

Usages:

- Use this Extension: HCPD Location
- Examples for this Extension: Sydney Central Medical Centre and Mobile Healthcare Unit - Sydney CBD

You can also check for usages in the FHIR IG Statistics

### Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

- Differential Table
- Snapshot Table
- Statistics/References
- All

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension(4.0.1) | HCPD Alternate Postal Address
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-alternate-postal-address"
value[x] |  | 1..1 | Address | Alternate postal/mailing address
type |  | 0..1 | code | postal | physical | both Fixed Value: postal
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension(4.0.1) | HCPD Alternate Postal Address Constraints: ext-1
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url Constraints: ext-1
url |  | 1..1 | uri | "http://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-alternate-postal-address"
value[x] |  | 1..1 | Address | Alternate postal/mailing address
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url Constraints: ext-1
use | ?!Σ | 0..1 | code | home | work | temp | old | billing - purpose of this address Binding: AddressUse (required): The use of an address. Example General: home
type | Σ | 0..1 | code | postal | physical | both Binding: AddressType (required): The type of an address (physical / postal). Fixed Value: postal
text | Σ | 0..1 | string | Text representation of the address Example General: 137 Nowhere Street, Erewhon 9132
line | Σ | 0..* | string | Street name, number, direction & P.O. Box etc. This repeating element order: The order in which lines should appear in an address label Example General: 137 Nowhere Street
city | Σ | 0..1 | string | Name of city, town etc. Example General: Erewhon
district | Σ | 0..1 | string | District name (aka county) Example General: Madison
state | Σ | 0..1 | string | Sub-unit of country (abbreviations ok)
postalCode | Σ | 0..1 | string | Postal code for area Example General: 9132
country | Σ | 0..1 | string | Country (e.g. can be ISO 3166 2 or 3 letter code)
period | Σ | 0..1 | Period | Time period when address was/is in use Example General: {"start":"2010-03-23","end":"2010-07-01"}
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Address: Alternate postal/mailing address for correspondence (PO Box or mailing address) that is distinct from the registered physical address.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension(4.0.1) | HCPD Alternate Postal Address
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-alternate-postal-address"
value[x] |  | 1..1 | Address | Alternate postal/mailing address
type |  | 0..1 | code | postal | physical | both Fixed Value: postal
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension(4.0.1) | HCPD Alternate Postal Address Constraints: ext-1
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url Constraints: ext-1
url |  | 1..1 | uri | "http://digitalhealth.gov.au/fhir/hcpd/StructureDefinition/hcpd-alternate-postal-address"
value[x] |  | 1..1 | Address | Alternate postal/mailing address
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url Constraints: ext-1
use | ?!Σ | 0..1 | code | home | work | temp | old | billing - purpose of this address Binding: AddressUse (required): The use of an address. Example General: home
type | Σ | 0..1 | code | postal | physical | both Binding: AddressType (required): The type of an address (physical / postal). Fixed Value: postal
text | Σ | 0..1 | string | Text representation of the address Example General: 137 Nowhere Street, Erewhon 9132
line | Σ | 0..* | string | Street name, number, direction & P.O. Box etc. This repeating element order: The order in which lines should appear in an address label Example General: 137 Nowhere Street
city | Σ | 0..1 | string | Name of city, town etc. Example General: Erewhon
district | Σ | 0..1 | string | District name (aka county) Example General: Madison
state | Σ | 0..1 | string | Sub-unit of country (abbreviations ok)
postalCode | Σ | 0..1 | string | Postal code for area Example General: 9132
country | Σ | 0..1 | string | Country (e.g. can be ISO 3166 2 or 3 letter code)
period | Σ | 0..1 | Period | Time period when address was/is in use Example General: {"start":"2010-03-23","end":"2010-07-01"}
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Address: Alternate postal/mailing address for correspondence (PO Box or mailing address) that is distinct from the registered physical address.

Other representations of profile: CSV, Excel, Schematron

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Extension.value[x].use | Base | required | AddressUse | 📍4.0.1 | FHIR Std.
Extension.value[x].type | Base | required | AddressType | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression