# Health Connect Australia Provider Directory FHIR Implementation Guide

0.1.0-preview - Preview

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 0.1.0-preview built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/steveswinsburg/HealthConnect/ and changes regularly. See the Directory of published versions

## Data Type Profile: HC PCA Healthcare Service Identifier (PCA-HSI)

Official URL: http://ns.electronichealth.net.au/hc/StructureDefinition/pca-hsi | Version: 0.1.0-preview
Standards status: Draft | Computable Name: PCAHealthcareServiceIdentifier
Usage:Jurisdiction: Australia
Copyright/Legal: Copyright © 2025 Australian Digital Health Agency - All rights reserved. This content is licensed under a Creative Commons Attribution 4.0 International License. See https://creativecommons.org/licenses/by/4.0/

Identifier for a healthcare service as allocated by PCA.

No data is entered directly into Health Connect; all directory content is sourced from authoritative systems including PCA, HI-Service, and NHSD.

### PCA healthcare service identifier extension

The PCA Healthcare Service Identifier (PCA-HSI) extension defines an identifier for a healthcare service as allocated by the Provider Connect Australia (PCA) system. This extension is used to capture the PCA-allocated identifier for a HealthcareService resource within the Health Connect directory.

Usage context:

- The extension is applied to the `identifier` element of HealthcareService resources, specifically to represent the PCA-allocated identifier alongside other identifiers (such as the Health Connect Healthcare Service Identifier).
- It is referenced by the `HC HealthcareService` profile, which supports multiple identifiers for a healthcare service, including those issued by PCA and Health Connect.
- The extension ensures that the PCA identifier is preserved and available for reconciliation, traceability, and interoperability between Health Connect and PCA systems.

Key requirements:

- The `system` element is fixed to the PCA identifier system URL: `http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier`.
- The `value` element is required and holds the PCA-allocated identifier value for the healthcare service.

Usage notes:

- Use this extension when a healthcare service listed in Health Connect has a corresponding record in PCA and a PCA-allocated identifier is available.
- The PCA-HSI should not be confused with the Health Connect Healthcare Service Identifier (HC-HSI), which is issued by Health Connect itself.
- Both identifiers may be present on a HealthcareService resource to support cross-system reconciliation and data integrity.

Implementers must ensure that the PCA Healthcare Service Identifier extension is used only for PCA-issued identifiers and that the system and value are populated according to the extension definition. This supports accurate mapping and interoperability between Health Connect and PCA directories.

Usages:

- This DataType Profile is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

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

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

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
use | ?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
system | Σ | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value | Σ | 1..1 | string | PCA-allocated identifier value for healthcare service. Example General: 123456
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`

This structure is derived from Identifier

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
system |  | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value |  | 1..1 | string | PCA-allocated identifier value for healthcare service.
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
use | ?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
type | Σ | 0..1 | CodeableConcept | Description of identifier Binding: Identifier Type Codes (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
system | Σ | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value | Σ | 1..1 | string | PCA-allocated identifier value for healthcare service. Example General: 123456
period | Σ | 0..1 | Period | Time period when id is/was valid for use
assigner | Σ | 0..1 | Reference(Organization) | Organization that issued id (may be just text)
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std.
Identifier.type | Base | extensible | IdentifierType | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

This structure is derived from Identifier

Summary

Mandatory: 2 elements
Fixed: 1 element

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
use | ?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
system | Σ | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value | Σ | 1..1 | string | PCA-allocated identifier value for healthcare service. Example General: 123456
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`

Differential View

This structure is derived from Identifier

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
system |  | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value |  | 1..1 | string | PCA-allocated identifier value for healthcare service.
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
use | ?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
type | Σ | 0..1 | CodeableConcept | Description of identifier Binding: Identifier Type Codes (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.
system | Σ | 1..1 | uri | PCA-allocated identifier system for healthcare service. Fixed Value: http://pca.digitalhealth.gov.au/fhir/4.0/StructureDefinition/pca-healthcare-service-identifier
value | Σ | 1..1 | string | PCA-allocated identifier value for healthcare service. Example General: 123456
period | Σ | 0..1 | Period | Time period when id is/was valid for use
assigner | Σ | 0..1 | Reference(Organization) | Organization that issued id (may be just text)
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std.
Identifier.type | Base | extensible | IdentifierType | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

This structure is derived from Identifier

Summary

Mandatory: 2 elements
Fixed: 1 element

Other representations of profile: CSV, Excel, Schematron