## Intersection of http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab and http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab

This is the set of resources that conform to both Quantity (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab) and Quantity (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Quantity-eu-lab).

### Structure

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Quantity | C | 0..* |  | A measured amount using UCUM Constraints: qty-3
extension |  | 0..* | Extension | Additional content defined by implementations
value | 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.
unit | Σ | 0..1 | string | Unit representation
system | S Σ | 1..1 | uri | left: UCUM system for units; right: System that defines coded unit form
code | S Σ | 1..1 | code | Coded form of the unit
Documentation for this format