description: Defines the essential criteria for a Condition resource with an encounter diagnosis for Sickle Cell disease. package_name: hl7.fhir.us.cdc-opioid-cpg derivation: constraint name: SickleCellEncounterDiagnosisCondition type: Condition elements: code: binding: {strength: required, valueSet: 'http://fhir.org/guides/cdc/opioid-cds/ValueSet/sickle-cell-diseases'} index: 0 subject: type: Reference refers: ['http://hl7.org/fhir/us/cdc-opioid-cpg/StructureDefinition/OpioidReviewUsefulPatient'] index: 1 encounter: type: Reference refers: ['http://hl7.org/fhir/us/cdc-opioid-cpg/StructureDefinition/OpioidReviewUsefulPatientEncounter'] index: 2 package_version: 1.0.0-ballot class: profile kind: resource url: http://hl7.org/fhir/us/cdc-opioid-cpg/StructureDefinition/SickleCellEncounterDiagnosisCondition base: http://hl7.org/fhir/us/qicore/StructureDefinition/qicore-condition-encounter-diagnosis version: 1.0.0-ballot required: [encounter]