## Profile Comparison between http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab vs http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab

Left: | Quantity (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab)
Right: | Quantity (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab)

### Messages

Error | StructureDefinition.version | Values for version differ: '0.1.1' vs '2.0.0-alpha'
Information | StructureDefinition.status | Values for status differ: 'active' vs 'draft'
Information | StructureDefinition.date | Values for date differ: '2025-03-25T12:00:10+01:00' vs '2026-02-25T15:28:07+01:00'
Error | StructureDefinition.baseDefinition | Values for baseDefinition differ: 'http://hl7.org/fhir/uv/ips/StructureDefinition/Quantity-uv-ips' vs 'http://hl7.org/fhir/StructureDefinition/Quantity'
Information | StructureDefinition.short | Values for short differ: 'UCUM system for units' vs 'System that defines coded unit form'
Warning | Quantity.system | Elements differ in definition for mustSupport: 'true' vs 'false'
Warning | Quantity.code | Elements differ in definition for mustSupport: 'true' vs 'false'
Information | Quantity.code | Element minimum cardinalities differ: '1' vs '0'

### Metadata

Name | Value | Comments
--- | --- | ---
abstract | false |
baseDefinition | http://hl7.org/fhir/uv/ips/StructureDefinition/Quantity-uv-ips | http://hl7.org/fhir/StructureDefinition/Quantity | Values Differ
copyright | Used by permission of HL7 Europe, all rights reserved Creative Commons License |
date | 2025-03-25T12:00:10+01:00 | 2026-02-25T15:28:07+01:00 | Values Differ
description | This profile constrains the Quantity data type to use UCUM as the code system for units and optionally share measurement uncertainty |
experimental |  |
fhirVersion | 4.0.1 |
jurisdiction |  |
jurisdiction[0] | http://unstats.un.org/unsd/methods/m49/m49.htm#150 |
kind | complex-type |
name | QuantityEuLab |
publisher | HL7 Europe |
purpose | This profile of the Quantity data type imposes the usage of the UCUM as the code system for units and allows expressing uncertainty of measurement |
status | active | draft | Values Differ
title | Quantity (Eu Lab) |
type | Quantity |
url | http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab |
version | 0.1.1 | 2.0.0-alpha | Values Differ

### Structure

Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Quantity | C | 0..* | QuantityIPS | A measured amount using UCUM | C | 0..* | Quantity | A measured amount using UCUM |
id |  | 0..1 | string | Unique id for inter-element referencing |  | 0..1 | string | 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 |
value | Σ | 0..1 | decimal | Numerical value (with implicit precision) | Σ | 0..1 | decimal | Numerical value (with implicit precision) |
comparator | ?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: ?? (required): How the Quantity should be understood and represented. | ?!Σ | 0..1 | code | < | <= | >= | > - how to understand the value Binding: ?? (required): How the Quantity should be understood and represented. |
unit | Σ | 0..1 | string | Unit representation | Σ | 0..1 | string | Unit representation |
system | S Σ C | 1..1 | uri | UCUM system for units Fixed Value: http://unitsofmeasure.org | Σ C | 1..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org | Elements differ in definition for mustSupport: 'true' vs 'false'
code | S Σ | 1..1 | code | Coded form of the unit | Σ | 0..1 | code | Coded form of the unit | Elements differ in definition for mustSupport: 'true' vs 'false' Element minimum cardinalities differ: '1' vs '0'
Documentation for this format