Working from LogicaHealth IG
https://covid-19-ig.logicahealth.org/StructureDefinition-covid19-symptoms-present.html
See analysis spreadsheet by Linda Bird
| FHIR element | Binding | Comments |
|---|---|---|
| Condition.code | COVID 19 Signs and Symptoms Value Set | |
| Condition.modifierExtension:certaintyOfAbsence | CertaintyOfAbsenceVS | Does the existence of the modifier change the interpretation of the Condition instance? See https://www.hl7.org/fhir/extensibility.html#modifierExtension http://hl7.org/fhir/R4/condition.html#9.2.3.4 and http://hl7.org/fhir/R4/condition.html#9.2.3.5 |