NHS North West Genomics
0.1.0 - ci-build United Kingdom flag

NHS North West Genomics, published by NHS North West Genomics. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/nw-gmsa/nw-gmsa.github.com/ and changes regularly. See the Directory of published versions

Data Type Profile: NHS Identifier

Official URL: https://fhir.nwgenomics.nhs.uk/StructureDefinition/NHSIdentifier Version: 0.1.0
Draft as of 2026-02-13 Computable Name: NHSIdentifier
Keywords: NHS Data Dictionary

Patient Administration HL7 IdentifierType: NH National Health Plan Identifier NHS Data Model and Dictionary England/Wales NHS NUMBER, Northern Ireland HEALTH AND CARE NUMBER and Scotland COMMUNITY HEALTH INDEX NUMBER Only traced NHS Number SHOULD be used, un-traced NHS Numbers MUST be clearly indicated.

Usages:

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.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. 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 .
... 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.
Fixed Value: As shown (National Health Plan Identifier)
.... id 0..0 string Unique id for inter-element referencing
.... extension 0..0 Extension Additional content defined by implementations
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... id 0..0 string Unique id for inter-element referencing
..... extension 0..0 Extension Additional content defined by implementations
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... version 0..0 string Version of the system - if relevant
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
..... display 0..0 string Representation defined by the system
..... userSelected 0..0 boolean If this coding was chosen directly by the user
.... text 0..0 string Plain text representation of the concept
... system Σ 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
Example General: http://www.acme.com/identifiers/patient
... value Σ 1..1 string The value that is unique
Example General: 123456

doco 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.
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG

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

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Identifier Identifier
... type 0..1 CodeableConcept Description of identifier
Fixed Value: As shown (National Health Plan Identifier)
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
... system 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
... value 1..1 string The value that is unique

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. 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.
Fixed Value: As shown (National Health Plan Identifier)
.... id 0..0 string Unique id for inter-element referencing
.... extension 0..0 Extension Additional content defined by implementations
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... id 0..0 string Unique id for inter-element referencing
..... extension 0..0 Extension Additional content defined by implementations
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... version 0..0 string Version of the system - if relevant
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
..... display 0..0 string Representation defined by the system
..... userSelected 0..0 boolean If this coding was chosen directly by the user
.... text 0..0 string Plain text representation of the concept
... system Σ 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
Example General: http://www.acme.com/identifiers/patient
... 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)

doco 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.
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG

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

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. 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 .
... 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.
Fixed Value: As shown (National Health Plan Identifier)
.... id 0..0 string Unique id for inter-element referencing
.... extension 0..0 Extension Additional content defined by implementations
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... id 0..0 string Unique id for inter-element referencing
..... extension 0..0 Extension Additional content defined by implementations
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... version 0..0 string Version of the system - if relevant
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
..... display 0..0 string Representation defined by the system
..... userSelected 0..0 boolean If this coding was chosen directly by the user
.... text 0..0 string Plain text representation of the concept
... system Σ 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
Example General: http://www.acme.com/identifiers/patient
... value Σ 1..1 string The value that is unique
Example General: 123456

doco 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.
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG

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

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Identifier Identifier
... type 0..1 CodeableConcept Description of identifier
Fixed Value: As shown (National Health Plan Identifier)
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
... system 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
... value 1..1 string The value that is unique

doco Documentation for this format

Terminology Bindings (Differential)

Path Status Usage ValueSet Version Source
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. 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.
Fixed Value: As shown (National Health Plan Identifier)
.... id 0..0 string Unique id for inter-element referencing
.... extension 0..0 Extension Additional content defined by implementations
.... coding 1..1 Coding Code defined by a terminology system
Fixed Value: (Complex)
..... id 0..0 string Unique id for inter-element referencing
..... extension 0..0 Extension Additional content defined by implementations
..... system 1..1 uri Identity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/v2-0203
..... version 0..0 string Version of the system - if relevant
..... code 1..1 code Symbol in syntax defined by the system
Fixed Value: NH
..... display 0..0 string Representation defined by the system
..... userSelected 0..0 boolean If this coding was chosen directly by the user
.... text 0..0 string Plain text representation of the concept
... system Σ 1..1 uri The namespace for the identifier value
Binding: UK National Health Identifiers (required)
Example General: http://www.acme.com/identifiers/patient
... 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)

doco 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.
Identifier.system Base required UK National Health Identifiers 📦0.1.0 This IG

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