EPIC Condition.encounter is OPTIONAL UCDavis screenshare is true, this would be a curveball. Likely means I will update CORE to find “encounter.diagnosis” and/or “condition.encounter” http://hl7.org/fhir/r4/condition-definitions.html#Condition.encounter https://build.fhir.org/encounter-definitions.html#Encounter.diagnosis @dogversioning noted this is true in FHIR spec as well.