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Key: = Must support, = QICore-defined extension, = Is-Modifier
Field Card. Type and Description 
basedOn 0..*List<Reference>A plan, proposal or order that is fulfilled in whole or in part by this event.category 0..1ConceptIndicates where type of medication statement and where the medication is expected to be consumed or administered.Binding: MedicationStatementCategory (Preferred)
context 0..1ReferenceThe encounter or episode of care that establishes the context for this MedicationStatement.dateAsserted 1..1DateTimeThe date when the medication statement was asserted by the information source.derivedFrom 0..*List<Reference>Allows linking the MedicationStatement to the underlying MedicationRequest, or to other information that supports or is used to derive the MedicationStatement.dosage 0..*List<Dosage>Indicates how the medication is/was or should be taken by the patient.effective[x] 0..1Interval<DateTime | Interval<DateTime>The interval of time during which it is being asserted that the patient was taking the medication (or was not taking, when the wasNotGiven element is true).identifier 0..*List<Identifier>External identifier - FHIR will generate its own internal identifiers (probably URLs) which do not need to be explicitly managed by the resource. The identifier here is one that would be used by another non-FHIR system - for example an automated medication pump would provide a record each time it operated; an administration while the patient was off the ward might be made with a different system and entered after the event. Particularly important if these records have to be updated.informationSource 0..1ReferenceThe person or organization that provided the information about the taking of this medication. Note: Use derivedFrom when a MedicationStatement is derived from other resources, e.g Claim or MedicationRequest.medication[x] 1..1Concept | Referencenote 0..*List<Annotation>Provides extra information about the medication statement that is not conveyed by the other attributes.partOf 0..*List<Reference>A larger event of which this particular event is a component or step.reasonCode 0..*List<Concept>A reason for why the medication is being/was taken.Binding: Condition/Problem/Diagnosis Codes (Example)
reasonNotTaken 0..*List<Concept>A code indicating why the medication was not taken.Binding: SNOMED CT Drugs not taken/completed Codes (Example)
reasonReference 0..*List<Reference>Condition or observation that supports why the medication is being/was taken.status 1..1StringA code representing the patient or other source's judgment about the state of the medication used that this statement is about. Generally this will be active or completed.Binding: MedicationStatementStatus (Required)
subject 1..1ReferenceThe person, animal or group who is/was taking the medication.taken 1..1StringIndicator of the certainty of whether the medication was taken by the patient.Binding: MedicationStatementTaken (Required)
Key: = Must support, = QICore-defined extension, = Is-Modifier
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