To align with US Core regarding elements with a 1..1 cardinality that lack an MS flag, make the following changes: Add MS in QI-Core CareTeam.text.div cardinality 1..1 xhtml to align with US Core even though the 1..1 requirement is equivalent to MS. Do Not Change DiagnosticReportLab as it is consistent with US Core Add MS flag to QI-Core DiagnosticReportNote.media.link with cardinality of 1..1 to align with US Core DiagnosticReportNote Do Not Change Encounter elements as they are consistent with US Core Update QI-Core Goal - retain the Goal.target.measure cardinality of 1..1 and the Goal.target.detail cardinality of 1..1 and add MS flag to each (different than US Core). Also, update QI-Core to match the US Core (removing the slice to match US Core as well): Goal.target.due [x] cardinality 0..1 (not MS) Goal.target.due [x] .dueDate - (with MS flag) Goal.target.due [x] .Duration - (no MS flag) Update QI-Core Immunization.occurrence [x] to align with US Core 5.0.0 Update QI-Core ImmunizationNotDone to add MS flag to Immunization.occurrence [x] occurrenceDateTime No change to QI-Core Medication as it aligns with US Core modeling No change to QI-Core MedicationRequest as it aligns with US Core modeling No change to Organization.identifier.ein.system in QI-Core to be consistent with US Core modeling of identifier systems No change to QI-Core Patient as it is consistent with US Core modeling Do NOT add MS to Practitioner.identifier.NPI.system, Practitioner.identifier.ccn.system, Practitioner.identifier.ein.system in QI-Core which is consistent with US Core modeling No change to QI-Core PractitionerRole as it is consistent with US Core modeling No change to QI-Core Procedure as it is consistent with US Core modeling No change to QI-Core ProcedureNotDone as it is consistent with US Core modeling