## Union of http://hl7.eu/fhir/laboratory/StructureDefinition/Ratio-eu-lab and http://hl7.eu/fhir/laboratory/StructureDefinition/Ratio-eu-lab

This is the set of resources that conform to either of the profiles Ratio (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Ratio-eu-lab) and Ratio (Eu Lab) (http://hl7.eu/fhir/laboratory/StructureDefinition/Ratio-eu-lab). E.g. what you have to deal with if you get resources conforming to one of them

### Structure

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Ratio | C | 0..* |  | A measured ratio using UCUM Constraints: rat-1
extension |  | 0..* | Extension | Additional content defined by implementations
numerator | S C | 0..1 | Quantity | left: A measured amount using UCUM; right: Numerator value Constraints: qty-3
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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 | Σ C | 0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code | Σ | 1..1 | code | Coded form of the unit
denominator | S C | 0..1 | Quantity | left: A measured amount using UCUM; right: Denominator value Constraints: qty-3
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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 | Σ C | 0..1 | uri | System that defines coded unit form Required Pattern: http://unitsofmeasure.org
code | Σ | 1..1 | code | Coded form of the unit
Documentation for this format