ERA FHIR specification - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
Extension: RegisterSpecifier
| Official URL: https://pta.kanta.fi/fhir/StructureDefinition/extension/RegisterSpecifier | Version: 1.0.0 | |||
| Draft as of 2026-10-28 | Computable Name: RegisterSpecifier | |||
The extension indicates the register specifier. In the occupational healthcare register, the specifier is used to indicate to which employer's occupational healthcare the information relates.
The register specifier is the employer's OID identifier formed from the Business ID. If no Business ID exists, an official personal identity code or an employer number specific to the occupational healthcare service provider may be used.
Context of Use
-
Element ID:
Provenance
This extension may be used on the following element(s)
Usage info
Usages:
- Use this Extension: AppointmentMitatointiProvenance, AppointmentProvenance, DIPKO Digital Health Service Provenance, EraAppointmentMitatointiProvenance and EraAppointmentProvenance
- Examples for this Extension: Parameters/EraAppointmentMitatointiProvenance-parameter-example
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.
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter:  |
|---|---|---|---|---|
  Extension |
0..1 | Extension | Register specifier | |
 url |
1..1 | uri | "https://pta.kanta.fi/fhir/StructureDefinition/extension/RegisterSpecifier" | |
  value[x] |
1..1 | Identifier | Register specifier | |
 use |
0..0 | usual | official | temp | secondary | old (If known) | ||
| type |
0..0 | Description of identifier | ||
| system |
1..1 | uri | The namespace for the identifier value | |
| value |
1..1 | string | The value that is unique | |
| period |
0..0 | Time period when id is/was valid for use | ||
 assigner |
0..0 | Organization that issued id (may be just text) | ||
| Documentation for this format | ||||
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Register specifier | |
 id |
0..1 | string | Unique id for inter-element referencing | |
 extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| url |
1..1 | uri | "https://pta.kanta.fi/fhir/StructureDefinition/extension/RegisterSpecifier" | |
| value[x] |
1..1 | Identifier | Register specifier | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| system |
1..1 | uri | The namespace for the identifier value Example General: http://www.acme.com/identifiers/patient | |
| value |
1..1 | string | The value that is unique Example General: 123456 | |
| Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Extension with the type Identifier: The extension indicates the register specifier. In the occupational healthcare register, the specifier is used to indicate to which employer's occupational healthcare the information relates.
The register specifier is the employer's OID identifier formed from the Business ID. If no Business ID exists, an official personal identity code or an employer number specific to the occupational healthcare service provider may be used.
Differential View
This structure is derived from Extension
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Register specifier | |
| url |
1..1 | uri | "https://pta.kanta.fi/fhir/StructureDefinition/extension/RegisterSpecifier" | |
| value[x] |
1..1 | Identifier | Register specifier | |
| use |
0..0 | usual | official | temp | secondary | old (If known) | ||
| type |
0..0 | Description of identifier | ||
| system |
1..1 | uri | The namespace for the identifier value | |
| value |
1..1 | string | The value that is unique | |
| period |
0..0 | Time period when id is/was valid for use | ||
| assigner |
0..0 | Organization that issued id (may be just text) | ||
| Documentation for this format | ||||
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension |
0..1 | Extension | Register specifier | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| url |
1..1 | uri | "https://pta.kanta.fi/fhir/StructureDefinition/extension/RegisterSpecifier" | |
| value[x] |
1..1 | Identifier | Register specifier | |
| id |
0..1 | string | Unique id for inter-element referencing | |
| extension |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
| system |
1..1 | uri | The namespace for the identifier value Example General: http://www.acme.com/identifiers/patient | |
| value |
1..1 | string | The value that is unique Example General: 123456 | |
| Documentation for this format | ||||
This structure is derived from Extension
Summary
Simple Extension with the type Identifier: The extension indicates the register specifier. In the occupational healthcare register, the specifier is used to indicate to which employer's occupational healthcare the information relates.
The register specifier is the employer's OID identifier formed from the Business ID. If no Business ID exists, an official personal identity code or an employer number specific to the occupational healthcare service provider may be used.
Other representations of profile: CSV, Excel, Schematron
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()
|