NHS North West Genomics
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Data Type Profile: Practitioner Identifier

Official URL: https://fhir.nwgenomics.nhs.uk/StructureDefinition/PractitionerIdentifier Version: 2.2.0
Draft as of 2026-09-20 Computable Name: PractitionerIdentifier

NHS Data Dictionary and Model

CONSULTANT CODE, GENERAL MEDICAL PRACTITIONER PPD CODE and PROFESSIONAL REGISTRATION ENTRY IDENTIFIER - this profile covers the family of professional-regulator registration numbers (GMC, NMC, GPhC, HCPC) plus locally/nationally-issued NHS identifiers (SDS User ID, GMC Reference Number) used to identify a practitioner.

Ubiquitous terms: GMC Number, Doctor Index Number (DIN), Professional Registration Number, Prescriber Code.

PROFESSIONAL REGISTRATION ENTRY IDENTIFIER

Ubiquitous Term Name FHIR identifier.system OID/HL7v3 HL7 v2 XCN-8 Value Format
(FHIR identifier.value
HL7 v2 XCN-1)
Description
GMP Code GENERAL MEDICAL PRACTITIONER PPD CODE https://fhir.hl7.org.uk/Id/gmp-number 2.16.840.1.113883.2.1.3.2.4.16.62 GMP G[1234589]NNNNNN General Medical Practitioner Code GENERAL MEDICAL PRACTITIONER PPD CODE. Formerly called GP General National Code (GNC).
GMC Number CONSULTANT_CODE https://fhir.hl7.org.uk/Id/gmc-number 2.16.840.1.113883.2.1.3.2.4.16.63 GMC CNNNNNNN General Medical Council Code CONSULTANT_CODE
NMC PIN Nursing and Midwifery Council PIN https://fhir.hl7.org.uk/Id/nmc-number   NMC NNANNNNA Nursing and Midwifery Council Code
GPhC Number General Pharmaceutical Council Registration Number https://fhir.hl7.org.uk/Id/gphc-number   GPHC NNNNNNN General Pharmaceutical Council Code
HCPC Number Health and Care Professional Council Registration Number https://fhir.hl7.org.uk/Id/hcpc-number   HCPC AANNNNNN(*) Health and Care Professional Council Code
DIN   https://fhir.hl7.org.uk/Id/din-number     NNNNNN Doctor Index Number
SDS User ID   https://fhir.nhs.uk/Id/sds-user-id 1.2.826.0.1285.0.2.0.65   N(*) SDS User ID
GMC Reference Number   https://fhir.nhs.uk/Id/gmc-reference-number 2.16.840.1.113883.2.1.3.2.4.18.29   NNNNNNN GMC Reference Number

Format

  • N = any number
  • A = any alpha
  • (*) NHS Prescription Services systems require these prescriber codes to be 8 characters long. Additional zeroes (0) should be inserted immediately following the first 2 alpha characters to extend the code to 8 characters as necessary.
Code Format Example
GP/medical prescriber (DIN) NNNNNN 954000
Nurse prescriber (NMC) NNANNNNA 71A2998E
Pharmacist prescriber (GPHC) NNNNNNN 2033467
Optometrist prescriber NN-NNNNN 01-09491
Podiatrist prescriber (HCPC) CHNNNNNN CH029821
Physiotherapist prescriber (HCPC) PHNNNNNN PH095159
Radiographer prescriber (HCPC) RANNNNNN RA088262
Dietician prescriber (HCPC) DTNNNNNN DT012345
Paramedic prescriber (HCPC) PANNNNNN PA054321

Example

HL7 v2 XCN

C3456789^Darwin^Samuel^^^Dr^^^GMC

HL7 FHIR Identifier

{
      "system" : "https://fhir.hl7.org.uk/Id/gmc-number",
      "value" : "C3456789"
}

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description Differentials, Snapshots, and other representations.

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 .
... system Σ 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
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.system Base extensible Practitioner Identifiers 📦2.2.0 This IG

Constraints

Id Grade Path(s) Description Expression

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Identifier Identifier
... system 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
... 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 extensible Practitioner Identifiers 📦2.2.0 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.
... system Σ 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
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 extensible Practitioner Identifiers 📦2.2.0 This IG

Constraints

Id Grade Path(s) Description Expression

Summary

Mandatory: 2 elements

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 .
... system Σ 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
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.system Base extensible Practitioner Identifiers 📦2.2.0 This IG

Constraints

Id Grade Path(s) Description Expression

Differential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Identifier Identifier
... system 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
... 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 extensible Practitioner Identifiers 📦2.2.0 This IG

Snapshot ViewView

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.
... system Σ 1..1 uri The namespace for the identifier value
Binding: Practitioner Identifiers (extensible)
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 extensible Practitioner Identifiers 📦2.2.0 This IG

Constraints

Id Grade Path(s) Description Expression

Summary

Mandatory: 2 elements

 

Other representations of profile: CSV, Excel, Schematron