Generated Narrative: StructureDefinition ch-emed-ratio-with-emed-units Name Flags Card. Type Description & Constraints Ratio Ratio numerator 1..1 CHCoreQuantityWithEmedUnits Numerator value denominator 1..1 CHCoreQuantityWithEmedUnits Denominator value Documentation for this format
A ratio of two Quantity values - a numerator and a denominator
A relationship of two Quantity values - expressed as a numerator and a denominator.
The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.
All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present
(numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists())
(count(f:numerator) = count(f:denominator)) and ((count(f:numerator) > 0) or (count(f:extension) > 0))
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Extensions are always sliced by (at least) url
Additional content defined by implementations
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.
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.
Must have either extensions or value[x], not both
exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")])