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Key: = Must support, = QICore-defined extension, = Is-Modifier
Field Card. Type and Description 
authoredOn 1..1DateTimeThe date (and perhaps time) when the prescription was initially written or authored on.basedOn 0..*List<Reference>A plan or request that is fulfilled in whole or in part by this medication request.category 0..1ConceptIndicates the type of medication order and where the medication is expected to be consumed or administered.Binding: MedicationRequestCategory (Preferred)
context 0..1ReferenceA link to an encounter, or episode of care, that identifies the particular occurrence or set occurrences of contact between patient and health care provider.definition 0..*List<Reference>Protocol or definition followed by this request.detectedIssue 0..*List<Reference>Indicates an actual or potential clinical issue with or between one or more active or proposed clinical actions for a patient; e.g. Drug-drug interaction, duplicate therapy, dosage alert etc.dispenseRequest 0..1DispenseRequestIndicates the specific details for the dispense or medication supply part of a medication request (also known as a Medication Prescription or Medication Order). Note that this information is not always sent with the order. There may be in some settings (e.g. hospitals) institutional or system support for completing the dispense details in the pharmacy department.dosageInstruction 0..*List<Dosage>Indicates how the medication is to be used by the patient.doseType 0..1ExtensionThe type of dose, e.g., initial, maintenance, loading.eventHistory 0..*List<Reference>Links to Provenance records for past versions of this resource or fulfilling request or event resources that identify key state transitions or updates that are likely to be relevant to a user looking at the current version of the resource.groupIdentifier 0..1IdentifierA shared identifier common to all requests that were authorized more or less simultaneously by a single author, representing the identifier of the requisition or prescription.identifier 0..*List<Identifier>This records identifiers associated with this medication request that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. For example a re-imbursement system might issue its own id for each prescription that is created. This is particularly important where FHIR only provides part of an entire workflow process where records must be tracked through an entire system.infuseOver 0..1ExtensionFor infused medications, the length of time the infusion process, as a duration. Note the difference between infuseOver and duration of treatment (specified in administrationFrequency). An order may call for infusing a patient TID for an hour each time over a duration of 5 days.intent 1..1StringWhether the request is a proposal, plan, or an original order.Binding: MedicationRequestIntent (Required)
maxDeliveryRate 0..1ExtensionThe maximum rate of substance administration. For volume medications, the maximum rate is to be expressed as a volume per time period. This value may be used as a stopping condition when a deliveryRateIncrement is specified without a count.maxDeliveryVolume 0..1ExtensionThe maximum volume of fluid to administer to a patient.medication[x] 1..1Concept | ReferenceminDosePerPeriod 0..1ExtensionThe minimum total quantity of a therapeutic substance that may be administered to a subject over the period of time. E.g., 10 mg in 24 hours.note 0..*List<Annotation>Extra information about the prescription that could not be conveyed by the other attributes.priorPrescription 0..1ReferenceA link to a resource representing an earlier order related order or prescription.priority 0..1StringIndicates how quickly the Medication Request should be addressed with respect to other requests.Binding: MedicationRequestPriority (Required)
rateGoal 0..1ExtensionThe target rate to reach for this infusion. Note that deliveryRateGoal is typically less than the maximum delivery rate which is the rate not to exceed. For enteral feeding orders, a target tube feeding rate of 75ml/hour may be specified.rateIncrement 0..1ExtensionChange in the dosing rate applied each rateIncrementInterval, e.g., 20 mL/hour. The rate increment is usually an increase for a patient who is initiating tube feeding. The increase is continued until the maxDeliveryRate or rateGoal is reached.rateIncrementInterval 0..1ExtensionPeriod of time after which the rate increment should be attempted, e.g., 4 hours.reasonCode 0..*List<Concept>reasonReference 0..*List<Reference>Condition or observation that supports why the medication was ordered.recorder 0..1ReferenceThe person who entered the order on behalf of another individual for example in the case of a verbal or a telephone order.requester 1..1RequesterThe individual, organization or device that initiated the request and has responsibility for its activation.status 1..1StringA code specifying the current state of the order. Generally this will be active or completed state.Binding: MedicationRequestStatus (Required)
subject 1..1ReferenceA link to a resource representing the person or set of individuals to whom the medication will be given.substitution 0..1SubstitutionIndicates whether or not substitution can or should be part of the dispense. In some cases substitution must happen, in other cases substitution must not happen. This block explains the prescriber's intent. If nothing is specified substitution may be done.supportingInformation 0..*List<Reference>Include additional information (for example, patient height and weight) that supports the ordering of the medication.Key: = Must support, = QICore-defined extension, = Is-Modifier
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