Mobile access to Health Documents (MHD)
4.2.5 - trial-use International flag

Mobile access to Health Documents (MHD), published by IHE IT Infrastructure Technical Committee. This guide is not an authorized publication; it is the continuous build for version 4.2.5 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/IHE/ITI.MHD/ and changes regularly. See the Directory of published versions

Data Type Profile: uniqueId Identifier

Official URL: https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier Version: 4.2.5
Active as of 2026-10-27 Computable Name: UniqueIdIdentifier

uniqueId Identifier

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: doco
Identifier 0..* Identifier An identifier intended for computation
Identifier.use This element is a modifier element. This element is included in summaries. 0..1 code usual | official | temp | secondary | old (If known)
Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
Identifier.type This element is included in summaries. 1..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.
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system This element is included in summaries. 1..1 uri The namespace for the identifier value
Example General: http://www.acme.com/identifiers/patient
Identifier.value This element is included in summaries. 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.

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Identifier

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Identifier Identifier
Identifier.type 1..1 CodeableConcept Description of identifier
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system 1..1 uri The namespace for the identifier value
Identifier.value 1..1 string The value that is unique

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: doco
Identifier 0..* Identifier An identifier intended for computation
Identifier.id 0..1 string Unique id for inter-element referencing
Identifier.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Identifier.use This element is a modifier element. This element is included in summaries. 0..1 code usual | official | temp | secondary | old (If known)
Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
Identifier.type This element is included in summaries. 1..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.
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system This element is included in summaries. 1..1 uri The namespace for the identifier value
Example General: http://www.acme.com/identifiers/patient
Identifier.value This element is included in summaries. 1..1 string The value that is unique
Example General: 123456
Identifier.period This element is included in summaries. 0..1 Period Time period when id is/was valid for use
Identifier.assigner This element is included in summaries. 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.

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Identifier

Summary

Mandatory: 3 elements

Key Elements View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Identifier 0..* Identifier An identifier intended for computation
Identifier.use This element is a modifier element. This element is included in summaries. 0..1 code usual | official | temp | secondary | old (If known)
Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
Identifier.type This element is included in summaries. 1..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.
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system This element is included in summaries. 1..1 uri The namespace for the identifier value
Example General: http://www.acme.com/identifiers/patient
Identifier.value This element is included in summaries. 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.

Constraints

Id Grade Path(s) Description Expression

Differential View

This structure is derived from Identifier

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Identifier Identifier
Identifier.type 1..1 CodeableConcept Description of identifier
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system 1..1 uri The namespace for the identifier value
Identifier.value 1..1 string The value that is unique

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: doco
Identifier 0..* Identifier An identifier intended for computation
Identifier.id 0..1 string Unique id for inter-element referencing
Identifier.extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
Identifier.use This element is a modifier element. This element is included in summaries. 0..1 code usual | official | temp | secondary | old (If known)
Binding: IdentifierUse (required): Identifies the purpose for this identifier, if known .
Identifier.type This element is included in summaries. 1..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.
Required Pattern: 
{
  "coding" : [
    {
      "system" : "https://profiles.ihe.net/ITI/MHD/CodeSystem/IHE.MHD.MHDIdentifierType",
      "code" : "uniqueId"
    }
  ]
}
Identifier.system This element is included in summaries. 1..1 uri The namespace for the identifier value
Example General: http://www.acme.com/identifiers/patient
Identifier.value This element is included in summaries. 1..1 string The value that is unique
Example General: 123456
Identifier.period This element is included in summaries. 0..1 Period Time period when id is/was valid for use
Identifier.assigner This element is included in summaries. 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.

Constraints

Id Grade Path(s) Description Expression

This structure is derived from Identifier

Summary

Mandatory: 3 elements

 

Other representations of profile: CSV, Excel, Schematron