http://hl7.org/fhir/StructureDefinition/cqf-qualityOfEvidence|5.2.0

The quality of the evidence described. The code system used specifies the quality scale used to grade this evidence source while the code specifies the actual quality score (represented as a coded value) associated with the evidence.
NameFlagsCardTypeDescription & Constraints
Extension
0..1The quality of the evidence
 
extension
?..0
 
url
?..?
 
value[x] *
1..? QualityOfEvidenceRating (example)
 
 
valueCodeableConcept *
1..?CodeableConcept QualityOfEvidenceRating (example)