Health Connect Australia Provider Directory FHIR Implementation Guide

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.

• 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()

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