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4.12.6 Resource MedicationStatement - Formal Definitions

Formal definitions for the elements in the MedicationStatement resource.

MedicationStatement
Definition A record of medication being taken by a patient, or that the medication has been given to a patient where the record is the result of a report from the patient or another clinician.
Control 1..1
Invariants Defined on this element
Inv-1 : Reason not given is only permitted if wasNotGiven is true (xpath: not(exists(f:reasonNotGiven)) or f:wasNotGiven='true')
MedicationStatement.identifier
Definition External identifier - FHIR will generate its own internal IDs (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.
Control 0..*
Type Identifier
Is Modifier true
MedicationStatement.patient
Definition The person or animal who is /was taking the medication.
Control 0..1
Type Resource ( Patient )
MedicationStatement.wasNotGiven
Definition Set this to true if the record is saying that the medication was NOT taken.
Control 0..1
Type boolean
MedicationStatement.reasonNotGiven
Definition A code indicating why the medication was not taken.
Control 0..*
Binding MedicationAdministrationNegationReason: ( See http://hl7.org/fhir/vs/reason-medication-not-given-codes )
Type CodeableConcept
Invariants Affect this element
Inv-1 : Reason not given is only permitted if wasNotGiven is true (xpath: not(exists(f:reasonNotGiven)) or f:wasNotGiven='true')
To Do Is this in the 80% for medication statement?.
MedicationStatement.whenGiven
Definition The interval of time during which it is being asserted that the patient was taking the medication.
Control 0..1
Type Period
Comments If the medication is still being taken at the time the statement is recorded, the "end" date will be omitted.
MedicationStatement.medication
Definition Identifies the medication being administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.
Control 0..1
Type Resource ( Medication )
Comments Note: do not use Medication.name to describe the medication this statement concerns. When the only available information is a text description of the medication, Medication.code.text should be used.
MedicationStatement.device
Definition An identifier or a link to a resource that identifies a device used in administering the medication to the patient.
Control 0..*
Type Resource ( Device )
To Do Is this in the 80% for medication statement?.
MedicationStatement.dosage
Definition Indicates how the medication is/was used by the patient.
Control 0..*
MedicationStatement.dosage.timing
Definition The timing schedule for giving the medication to the patient. The Schedule data type allows many different expressions, for example. "Every 8 hours"; "Three times a day"; "1/2 an hour before breakfast for 10 days from 23-Dec 2011:"; "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013".
Control 0..1
Type Schedule
MedicationStatement.dosage.asNeeded[x]
Definition If set to true or if specified as a CodeableConcept, indicates that the medication is only taken when needed within the specified schedule rather than at every scheduled dose. If a CodeableConcept is present, it indicates the pre-condition for taking the Medication.
Control 0..1
Binding MedicationAsNeededReason: A coded concept identifying the pre-condition that should hold prior to consuming a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up", etc.
Type boolean | CodeableConcept
MedicationStatement.dosage.site
Definition A coded specification of the anatomic site where the medication first enters the body.
Control 0..1
Binding MedicationAdministrationSite: ( See http://hl7.org/fhir/vs/approach-site-codes )
Type CodeableConcept
MedicationStatement.dosage.route
Definition A code specifying the route or physiological path of administration of a therapeutic agent into or onto a subject.
Control 0..1
Binding RouteOfAdministration: ( See http://hl7.org/fhir/vs/route-codes )
Type CodeableConcept
MedicationStatement.dosage.method
Definition A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. Examples: Slow Push; Deep IV. Terminologies used often pre-coordinate this term with the route and or form of administration.
Control 0..1
Binding MedicationAdministrationMethod: ( See http://hl7.org/fhir/vs/administration-method-codes )
Type CodeableConcept
MedicationStatement.dosage.quantity
Definition The amount of therapeutic or other substance given at one administration event.
Control 0..1
Type Quantity
MedicationStatement.dosage.rate
Definition Identifies the speed with which the substance is introduced into the subject. Typically the rate for an infusion. 200ml in 2 hours.
Control 0..1
Type Ratio
MedicationStatement.dosage.maxDosePerPeriod
Definition The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. E.g. 1000mg in 24 hours.
Control 0..1
Type Ratio
To Do Is this in the 80% for medication statement?.
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