Update as follows:  Note that, unless the element has a MS flag in US Core 6.1.0, we should include those Keep element in the Key Elements Table for QICore but not add an MS Flag. Add (QM) to description of all Keep or Add elements such that that will be included in the Key Elements Table for QI-Core. QI-Core Profile-based path Action Include in QI-Core 6.0 Justification QICoreAllergyIntolerance. implicitRules Keep YES Same as US Core 6.1.0 QICoreAllergyIntolerance.extension: resolutionAge Keep YES Currently in Key Elements Table for QICore – not in US Core but useful QICoreAllergyIntolerance. modifierExtension Keep YES Exists in QICore Key Elements Table and US Core QICoreAllergyIntolerance. clinicalStatus Keep YES USCDI – Required binding to AllergyIntoleranceClinicalStatusCodes QICoreAllergyIntolerance. verificationStatus Keep YES USCDI – Required binding to AllergyIntoleranceVerificationStatusCodes QICoreAllergyIntolerance. type Keep YES Not in US Core – required binding to AllergyIntoleranceType – underlying mechanism (allergy vs intolerance)   QICoreAllergyIntolerance. category Keep YES Not in US Core – required binding to AllergyIntoleranceCategory QICoreAllergyIntolerance. criticality Keep YES Not in US Core – required binding to AllergyIntoleranceCriticality QICoreAllergyIntolerance. code Keep YES USCDI – US Core with same extensible binding to Common substances for allergy and intolerance documentation including refutations QICoreAllergyIntolerance. patient Keep YES (Reference to QI-CorePatient) USCDI – US Core references US Core Patient – change to QICorePatient QICoreAllergyIntolerance. encounter REMOVE NO Not in US Core/USCDI and relationship is only relevant if the allergy was first identified and reaction occurred during an encounter – no clear use case as onset can be determined with CQL epression QICoreAllergyIntolerance.extension:reasonRefuted REMOVE NO No specific use case in measurement QICoreAllergyIntolerance.lastOccurrence REMOVE NO No specific use case in measurement  QICoreAllergyIntolerance. onset Keep YES Listed in QI-Core, not USCDI or US Core. Valuable but may be difficult to determine. This item is in Key Elements Table. With onset dateTIme, onsetAge, onsetPeriod, onsetRange QICoreAllergyIntolerance. recordedDate Keep YES Listed in QI-Core, not in USCDI or US Core. Valuable and may be only date available. QICoreAllergyIntolerance. recorder REMOVE NO Not in US Core – no use case QICoreAllergyIntolerance. asserter REMOVE NO Not in US Core – no use case QICoreAllergyIntolerance. reaction KEEP YES USCDI – US Core QICoreAllergyIntolerance.reaction. reactionDuration REMOVE NO Not in US Core – no use case QICoreAllergyIntolerance.reaction. modifierExtension KEEP YES USCDI – US Core QICoreAllergyIntolerance.reaction. manifestation KEEP YES USCDI – Same value set and extensible binding to SNOMEDCTClinicalFindings as US Core QICoreAllergyIntolerance.reaction. onset REMOVE NO Not in USCDI or US Core – datatype dateTime will be difficult to retrieve QICoreAllergyIntolerance.reaction. severity KEEP YES Not in USCDI or US Core. Keep required binding to reactionEventSeverity Reply