Netherlands - Generic Functions for data exchange Implementation Guide
0.2.0-ballot - ci-build

Netherlands - Generic Functions for data exchange Implementation Guide, published by Ministerie van Volksgezondheid, Welzijn en Sport. This guide is not an authorized publication; it is the continuous build for version 0.2.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/minvws/generiekefuncties-docs/ and changes regularly. See the Directory of published versions

## Data Type Profile: NVI Identifier

Official URL: http://minvws.github.io/generiekefuncties-docs/StructureDefinition/nl-gf-nvi-identifier | Version: 0.2.0-ballot
Draft as of 2026-03-24 | Computable Name: NviIdentifier

Identifier for pseudonymized Dutch citizen service numbers (BSN).

Usages:

- Use this DataType Profile: NL Generic Functions Localization List Profile

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 . Required Pattern: temp
system | Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value | Σ | 1..1 | string | The value that is unique 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 |  |  | Identifier |
use |  | 0..1 | code | usual | official | temp | secondary | old (If known) Required Pattern: temp
system |  | 1..1 | uri | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value |  | 1..1 | string | The value that is unique
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 . Required Pattern: temp
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 | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value | Σ | 1..1 | string | The value that is unique 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 . Required Pattern: temp
system | Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value | Σ | 1..1 | string | The value that is unique 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 |  |  | Identifier |
use |  | 0..1 | code | usual | official | temp | secondary | old (If known) Required Pattern: temp
system |  | 1..1 | uri | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value |  | 1..1 | string | The value that is unique
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 . Required Pattern: temp
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 | The namespace for the identifier value Fixed Value: http://minvws.github.io/generiekefuncties-docs/NamingSystem/nvi-identifier
value | Σ | 1..1 | string | The value that is unique 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