## Profile Comparison between https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier vs https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier

Left: | uniqueId Identifier (https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier)
Right: | uniqueId Identifier (https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier)

### Messages

Error | StructureDefinition.version | Values for version differ: '4.2.2' vs '5.0.0-current'
Information | StructureDefinition.date | Values for date differ: '2024-05-18T12:31:54-05:00' vs '2025-10-13T19:00:21+00:00'
Warning | StructureDefinition.fhirVersion | Values for fhirVersion differ: '4.0.1' vs '5.0.0'
Information | StructureDefinition.definition | Values for definition differ: 'May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.' vs 'May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.'
Information | Identifier.use | Element minimum cardinalities differ: '0' vs '1'
Information | StructureDefinition.definition | Values for definition differ: 'Establishes the namespace for the value - that is, a URL that describes a set values that are unique.' vs 'Establishes the namespace for the value - that is, an absolute URL that describes a set values that are unique.'
Information | StructureDefinition.comment | Values for comment differ: 'If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the [Rendered Value extension](http://hl7.org/fhir/R4/extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.' vs 'If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the [http://hl7.org/fhir/StructureDefinition/rendered-value](http://hl7.org/fhir/extensions/StructureDefinition-rendered-value.html)). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.'

### Metadata

Name | Value | Comments
--- | --- | ---
abstract | false |
baseDefinition | http://hl7.org/fhir/StructureDefinition/Identifier |
copyright |  |
date | 2024-05-18T12:31:54-05:00 | 2025-10-13T19:00:21+00:00 | Values Differ
description | uniqueId Identifier - see [Appendix Z](https://profiles.ihe.net/ITI/TF/Volume2/ch-Z.html#z.9.1-identifier-type) | uniqueId Identifier - see [Appendix Z](https://profiles.ihe.net/ITI/TF/Volume2/ch-Z.html#z.9.1-identifier-type) | Values Differ
experimental |  |
fhirVersion | 4.0.1 | 5.0.0 | Values Differ
jurisdiction |  |
jurisdiction[0] | http://unstats.un.org/unsd/methods/m49/m49.htm#001 |
kind | complex-type |
name | UniqueIdIdentifier |
publisher | IHE IT Infrastructure Technical Committee |
purpose |  |
status | active |
title | uniqueId Identifier |
type | Identifier |
url | https://profiles.ihe.net/ITI/MHD/StructureDefinition/IHE.MHD.UniqueIdIdentifier |
version | 4.2.2 | 5.0.0-current | Values Differ

### Structure

Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Identifier |  | 0..* | Identifier | An identifier intended for computation | C | 0..* | Identifier | An identifier intended for computation |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | id | Unique id for inter-element referencing |
Slices for extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url |  | 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: ?? (required): Identifies the purpose for this identifier, if known . Required Pattern: usual | ?!Σ | 1..1 | code | usual | official | temp | secondary | old (If known) Binding: ?? (required): Identifies the purpose for this identifier, if known . Required Pattern: usual | Element minimum cardinalities differ: '0' vs '1'
type | Σ | 0..1 | CodeableConcept | Description of identifier Binding: ?? (extensible): A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. | Σ | 0..1 | CodeableConcept | Description of identifier Binding: ?? (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 Example General: http://www.acme.com/identifiers/patient | Σ | 1..1 | uri | The namespace for the identifier value Example General: http://www.acme.com/identifiers/patient |
value | Σ | 1..1 | string | The value that is unique Example General: 123456 | Σ C | 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 | 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) | Σ | 0..1 | Reference(Organization) | Organization that issued id (may be just text) |
Documentation for this format