- Details of how medication was taken Indicates how the medication is/was used by the patient.
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Key: = Must support, = QICore-defined extension, = Is-Modifier
Field Card. Type and Description 
additionalInstructions 0..*List<Concept>Additional instructions such as "Swallow with plenty of water" which may or may not be coded.Binding: SNOMED CT Additional Dosage Instructions (Example)
asNeeded[x] 0..1Boolean | ConceptIndicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept). Specifically if 'boolean' datatype is selected, then the following logic applies: If set to True, this indicates that the medication is only taken when needed, within the specified schedule.Binding: SNOMED CT Medication As Needed Reason Codes (Example)
dose[x] 0..1Quantity | interval<Quantity>The amount of therapeutic or other substance given at one administration event.id 0..1Stringunique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.maxDosePerPeriod 0..1RatioThe maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.method 0..1ConceptA coded value indicating the method by which the medication is intended to be or was introduced into or on the body. This attribute will most often NOT be populated. It is most commonly used for injections. For example, Slow Push, Deep IV.Binding: SNOMED CT Administration Method Codes (Example)
rate[x] 0..1Ratio | interval<Quantity> | QuantityIdentifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours. Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.route 0..1ConceptA code specifying the route or physiological path of administration of a therapeutic agent into or onto a subject.Binding: value set (Preferred)
site[x] 0..1Concept | BodySiteA coded specification of or a reference to the anatomic site where the medication first enters the body.Binding: value set (Preferred)
text 0..1StringFree text dosage information as reported about a patient's medication use. When coded dosage information is present, the free text may still be present for display to humans.timing 0..1TimingThe 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". Sometimes, a rate can imply duration when expressed as total volume / duration (e.g. 500mL/2 hours implies a duration of 2 hours). However, when rate doesn't imply duration (e.g. 250mL/hour), then the timing.repeat.duration is needed to convey the infuse over time period.Key: = Must support, = QICore-defined extension, = Is-Modifier
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