HL7 FHIR Implementation Guide: DK Core
3.5.0 - ci-build
HL7 FHIR Implementation Guide: DK Core, published by HL7 Denmark. This guide is not an authorized publication; it is the continuous build for version 3.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7dk/dk-core/ and changes regularly. See the Directory of published versions
Official URL: http://hl7.dk/fhir/core/StructureDefinition/dk-core-gln-identifier | Version: 3.5.0 | |||
Draft as of 2025-10-20 | Computable Name: GLNIdentifier |
Identifier holding a 13 digit GLN
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Profiles, Differentials, Snapshots and how the different presentations work.
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . Fixed Value: official |
![]() ![]() ![]() |
Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln |
![]() ![]() ![]() |
ΣC | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 Example General: 123456 |
![]() |
Path | Status | Usage | ValueSet | Version | Source |
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std. |
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())
|
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
This structure is derived from Identifier
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
0..1 | code | usual | official | temp | secondary | old (If known) Fixed Value: official | |
![]() ![]() ![]() |
1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln | |
![]() ![]() ![]() |
C | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 |
![]() |
Id | Grade | Path(s) | Description | Expression |
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() ![]() |
?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . Fixed Value: official |
![]() ![]() ![]() |
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. |
![]() ![]() ![]() |
Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln |
![]() ![]() ![]() |
ΣC | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 Example General: 123456 |
![]() ![]() ![]() |
Σ | 0..1 | Period | Time period when id is/was valid for use |
![]() ![]() ![]() |
Σ | 0..1 | Reference(Organization) | Organization that issued id (may be just text) |
![]() |
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. |
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()
|
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
This structure is derived from Identifier
Key Elements View
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . Fixed Value: official |
![]() ![]() ![]() |
Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln |
![]() ![]() ![]() |
ΣC | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 Example General: 123456 |
![]() |
Path | Status | Usage | ValueSet | Version | Source |
Identifier.use | Base | required | IdentifierUse | 📍4.0.1 | FHIR Std. |
Id | Grade | Path(s) | Description | Expression |
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children |
hasValue() or (children().count() > id.count())
|
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
Differential View
This structure is derived from Identifier
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
0..1 | code | usual | official | temp | secondary | old (If known) Fixed Value: official | |
![]() ![]() ![]() |
1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln | |
![]() ![]() ![]() |
C | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 |
![]() |
Id | Grade | Path(s) | Description | Expression |
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
Snapshot View
Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
---|---|---|---|---|
![]() ![]() |
0..* | Identifier | An identifier intended for computation | |
![]() ![]() ![]() |
0..1 | string | Unique id for inter-element referencing | |
![]() ![]() ![]() |
0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |
![]() ![]() ![]() |
?!Σ | 0..1 | code | usual | official | temp | secondary | old (If known) Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known . Fixed Value: official |
![]() ![]() ![]() |
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. |
![]() ![]() ![]() |
Σ | 1..1 | uri | The namespace for the identifier value Fixed Value: https://www.gs1.org/gln |
![]() ![]() ![]() |
ΣC | 1..1 | string | The value that is unique Constraints: gln-length, gln-modulus-10 Example General: 123456 |
![]() ![]() ![]() |
Σ | 0..1 | Period | Time period when id is/was valid for use |
![]() ![]() ![]() |
Σ | 0..1 | Reference(Organization) | Organization that issued id (may be just text) |
![]() |
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. |
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()
|
gln-length | error | Identifier.value | GLN must be exactly 13 characters long |
matches('^[0-9]{13}$')
|
gln-modulus-10 | error | Identifier.value | GLN must pass the modulus 10 check - https://www.gs1.org/services/how-calculate-check-digit-manually |
((
(10-((substring(0,1).toInteger()*1)+
(substring(1,1).toInteger()*3)+
(substring(2,1).toInteger()*1)+
(substring(3,1).toInteger()*3)+
(substring(4,1).toInteger()*1)
+(substring(5,1).toInteger()*3)
+(substring(6,1).toInteger()*1)
+(substring(7,1).toInteger()*3)
+(substring(8,1).toInteger()*1)
+(substring(9,1).toInteger()*3)
+(substring(10,1).toInteger()*1)
+(substring(11,1).toInteger()*3))mod(10))mod(10))=substring(12,1).toInteger())
|
This structure is derived from Identifier
Other representations of profile: CSV, Excel, Schematron