http://hl7.org/fhir/StructureDefinition/observation-precondition|4.0.1

Other preceding or concurrent observations that must be known to correctly interpret the the observation. For example an fiO2 measure taken alongside of a SpO2 measurement. See the [Observation notes](observation.html#notes) section for additional guidance.

Structure JSON Dependencies FHIRSchema Other Versions Dependant (0)Elements Summary

Base: http://hl7.org/fhir/StructureDefinition/Extension4.0.1, 5.0.0, 4.0.1

Type: Extension (a.k.a: http://hl7.org/fhir/StructureDefinition/Extension)

Type dependencies: 2

Elements

extension: Extension

id: http://hl7.org/fhirpath/System.String

url: http://hl7.org/fhirpath/System.String

value[x]: Reference