GP Connect (Patient Facing) Prescriptions

This guidance is under active development by NHS Digital and content may be added or updated on a regular basis.

UKCore-MedicationStatement

pharmacistVerifiedIndicatorI0..1Extension(boolean)
medicationPrescribingOrganizationTypeI0..1Extension(CodeableConcept)
medicationStatementLastIssueDateI0..1Extension(dateTime)
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ1..1uri
valueΣ1..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
statusΣ ?!1..1codeBinding
statusReason0..*CodeableConcept
categoryΣ0..1CodeableConceptBinding
medicationCodeableConceptCodeableConcept
medicationReferenceReference(UK Core Medication)
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
effectiveDateTimedateTime
effectivePeriodPeriod
dateAssertedΣ0..1dateTime
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
reasonCode0..*CodeableConcept
referenceΣ I0..1string
typeΣ0..1uriBinding
useΣ ?!0..1codeBinding
typeΣ0..1CodeableConceptBinding
systemΣ0..1uri
valueΣ0..1string
periodΣ I0..1Period
assignerΣ I0..1Reference(UK Core Organization)
displayΣ0..1string
authorStringstring
authorReferenceReference(UK Core Patient | UK Core Practitioner | UK Core RelatedPerson)
timeΣ0..1dateTime
textΣ1..1markdown
sequenceΣ0..1integer
textΣ0..1string
additionalInstructionΣ0..*CodeableConcept
patientInstructionΣ0..1string
timingΣ0..1Timing
asNeededBooleanboolean
asNeededCodeableConceptCodeableConcept
siteΣ0..1CodeableConceptBinding
routeΣ0..1CodeableConceptBinding
methodΣ0..1CodeableConceptBinding
typeΣ0..1CodeableConcept
doseRangeRange
doseQuantitySimpleQuantity
rateRatioRatio
rateRangeRange
rateQuantitySimpleQuantity
maxDosePerPeriodΣ I0..1Ratio
maxDosePerAdministrationΣ I0..1SimpleQuantity
maxDosePerLifetimeΣ I0..1SimpleQuantity
MedicationStatement
DefinitionA record of a medication that is being consumed by a patient. A MedicationStatement may indicate that the patient may be taking the medication now or has taken the medication in the past or will be taking the medication in the future. The source of this information can be the patient, significant other (such as a family member or spouse), or a clinician. A common scenario where this information is captured is during the history taking process during a patient visit or stay. The medication information may come from sources such as the patient's memory, from a prescription bottle, or from a list of medications the patient, clinician or other party maintains. The primary difference between a medication statement and a medication administration is that the medication administration has complete administration information and is based on actual administration information from the person who administered the medication. A medication statement is often, if not always, less specific. There is no required date/time when the medication was administered, in fact we only know that a source has reported the patient is taking this medication, where details such as time, quantity, or rate or even medication product may be incomplete or missing or less precise. As stated earlier, the medication statement information may come from the patient's memory, from a prescription bottle or from a list of medications the patient, clinician or other party maintains. Medication administration is more formal and is not missing detailed information.
Cardinality0...*
Comments

When interpreting a medicationStatement, the value of the status and NotTaken needed to be considered: MedicationStatement.status + MedicationStatement.wasNotTaken Status=Active + NotTaken=T = Not currently taking Status=Completed + NotTaken=T = Not taken in the past Status=Intended + NotTaken=T = No intention of taking Status=Active + NotTaken=F = Taking, but not as prescribed Status=Active + NotTaken=F = Taking Status=Intended +NotTaken= F = Will be taking (not started) Status=Completed + NotTaken=F = Taken in past Status=In Error + NotTaken=N/A = In Error.

Invariants
  • dom-2:If the resource is contained in another resource, it SHALL NOT contain nested Resources
    contained.contained.empty()
  • dom-4:If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated
    contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
  • dom-3:If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource
    contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
  • dom-6:A resource should have narrative for robust management
    text.`div`.exists()
  • dom-5:If a resource is contained in another resource, it SHALL NOT have a security label
    contained.meta.security.empty()
Mappings
  • rim:Entity. Role, or Act
  • workflow:Event
  • rim:SubstanceAdministration
MedicationStatement.id
DefinitionThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Cardinality0...1
TypeSystem.String
SummaryTrue
Comments

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

MedicationStatement.meta
DefinitionThe metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.
Cardinality0...1
TypeMeta
SummaryTrue
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.implicitRules
DefinitionA reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.
Cardinality0...1
Typeuri
ModifierTrue
SummaryTrue
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
MedicationStatement.language
DefinitionThe base language in which the resource is written.
Cardinality0...1
Typecode
Binding

A human language.

CommonLanguages (preferred)
Comments

Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
MedicationStatement.text
DefinitionA human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.
Cardinality0...1
TypeNarrative
Aliasnarrative, html, xhtml, display
Comments

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
  • rim:Act.text?
MedicationStatement.contained
DefinitionThese resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.
Cardinality0...*
TypeResource
Aliasinline resources, anonymous resources, contained resources
Comments

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

Mappings
  • rim:Entity. Role, or Act
  • rim:N/A
MedicationStatement.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.extension:pharmacistVerifiedIndicator
DefinitionThis extension is used to indicate whether a pharmacist verified a medication.
Cardinality0...1
TypeExtension(boolean)
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.extension:medicationPrescribingOrganizationType
DefinitionThis extension carries the type of organisation or setting responsible for authorising and issuing a medication.
Cardinality0...1
TypeExtension(CodeableConcept)
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.extension:medicationStatementLastIssueDate
DefinitionThis extension supports the exchange of the date information when a prescription was last issued.
Cardinality0...1
TypeExtension(dateTime)
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.modifierExtension
DefinitionMay be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Cardinality0...*
TypeExtension
ModifierTrue
Aliasextensions, user content
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.identifier
DefinitionIdentifiers associated with this Medication Statement 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. They are business identifiers assigned to this resource by the performer or other systems and remain constant as the resource is updated and propagates from server to server.
Cardinality0...*
TypeIdentifier
SummaryTrue
Comments

This is a business identifier, not a resource identifier.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • workflow:Event.identifier
  • w5:FiveWs.identifier
  • rim:.id
MedicationStatement.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality1...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality1...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.basedOn
DefinitionA plan, proposal or order that is fulfilled in whole or in part by this event.
Cardinality0...*
TypeReference(UK Core CarePlan | UK Core MedicationRequest | UK Core ServiceRequest)
SummaryTrue
Requirements

Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon.

Comments

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • workflow:Event.basedOn
  • rim:.outboundRelationship[typeCode=FLFS].target[classCode=SBADM or PROC or PCPR or OBS, moodCode=RQO orPLAN or PRP]
MedicationStatement.basedOn.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.basedOn.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.basedOn.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.basedOn.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.basedOn.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.basedOn.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.basedOn.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.basedOn.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.basedOn.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.basedOn.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.basedOn.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.basedOn.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.basedOn.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.basedOn.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.partOf
DefinitionA larger event of which this particular event is a component or step.
Cardinality0...*
TypeReference(UK Core MedicationDispense | UK Core MedicationStatement | UK Core Observation | UK Core Procedure | UK Core MedicationAdministration)
SummaryTrue
Requirements

This should not be used when indicating which resource a MedicationStatement has been derived from. If that is the use case, then MedicationStatement.derivedFrom should be used.

Comments

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • workflow:Event.partOf
  • rim:.outboundRelationship[typeCode=COMP]/target[classCode=SPLY or SBADM or PROC or OBS,moodCode=EVN]
MedicationStatement.partOf.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.partOf.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.partOf.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.partOf.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.partOf.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.partOf.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.partOf.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.partOf.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.partOf.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.partOf.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.partOf.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.partOf.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.partOf.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.partOf.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.status
DefinitionA 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.
Cardinality1...1
Typecode
Binding

A coded concept indicating the current status of a MedicationStatement.

Medication Status Codes (required)
ModifierTrue
SummaryTrue
Comments

MedicationStatement is a statement at a point in time. The status is only representative at the point when it was asserted. The value set for MedicationStatement.status contains codes that assert the status of the use of the medication by the patient (for example, stopped or on hold) as well as codes that assert the status of the medication statement itself (for example, entered in error).

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • workflow:Event.status
  • w5:FiveWs.status
  • rim:.statusCode
MedicationStatement.statusReason
DefinitionCaptures the reason for the current state of the MedicationStatement.
Cardinality0...*
TypeCodeableConcept
Binding

A coded concept indicating the reason for the status of the statement.

SNOMEDCTDrugTherapyStatusCodes (example)
Comments

This is generally only used for "exception" statuses such as "not-taken", "on-hold", "cancelled" or "entered-in-error". The reason for performing the event at all is captured in reasonCode, not here.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • workflow:Event.statusReason
  • rim:.inboundRelationship[typeCode=SUBJ].source[classCode=CACT, moodCode=EVN].reasonCOde
MedicationStatement.category
DefinitionIndicates where the medication is expected to be consumed or administered.
Cardinality0...1
TypeCodeableConcept
Binding

A coded concept identifying where the medication included in the MedicationStatement is expected to be consumed or administered.

UKCoreMedicationStatementCategory (extensible)
SummaryTrue
Comments

Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • w5:FiveWs.class
  • rim:.inboundRelationship[typeCode=COMP].source[classCode=OBS, moodCode=EVN, code="type of medication usage"].value
MedicationStatement.medication[x]
DefinitionIdentifies 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.
Cardinality1...1
TypeCodeableConcept
Binding

A coded concept identifying the substance or product being taken.

UKCoreMedicationCode (preferred)
SummaryTrue
Comments

If only a code is specified, then it needs to be a code for a specific product. If more information is required, then the use of the medication resource is recommended. For example, if you require form or lot number, then you must reference the Medication resource.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • workflow:Event.code
  • w5:FiveWs.what[x]
  • rim:.participation[typeCode=CSM].role[classCode=ADMM or MANU]
MedicationStatement.subject
DefinitionThe person, animal or group who is/was taking the medication.
Cardinality1...1
TypeReference(Group | UK Core Patient)
SummaryTrue
Comments

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • workflow:Event.subject
  • w5:FiveWs.subject[x]
  • v2:PID-3-Patient ID List
  • rim:.participation[typeCode=SBJ].role[classCode=PAT]
  • w5:FiveWs.subject
MedicationStatement.subject.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.subject.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.subject.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.subject.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.subject.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.subject.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.subject.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.subject.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.subject.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.subject.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.subject.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.subject.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.subject.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.subject.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.context
DefinitionThe encounter or episode of care that establishes the context for this MedicationStatement.
Cardinality0...1
TypeReference(UK Core EpisodeOfCare | UK Core Encounter)
SummaryTrue
Comments

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • workflow:Event.context
  • rim:.inboundRelationship[typeCode=COMP].source[classCode=ENC, moodCode=EVN, code="type of encounter or episode"]
MedicationStatement.context.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.context.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.context.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.context.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.context.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.context.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.context.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.context.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.context.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.context.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.context.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.context.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.context.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.context.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.effective[x]
DefinitionThe interval of time during which it is being asserted that the patient is/was/will be taking the medication (or was not taking, when the MedicationStatement.taken element is No).
Cardinality0...1
TypedateTime
SummaryTrue
Comments

This attribute reflects the period over which the patient consumed the medication and is expected to be populated on the majority of Medication Statements. If the medication is still being taken at the time the statement is recorded, the "end" date will be omitted. The date/time attribute supports a variety of dates - year, year/month and exact date. If something more than this is required, this should be conveyed as text.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • workflow:Event.occurrence[x]
  • w5:FiveWs.done[x]
  • rim:.effectiveTime
MedicationStatement.dateAsserted
DefinitionThe date when the medication statement was asserted by the information source.
Cardinality0...1
TypedateTime
SummaryTrue
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • w5:FiveWs.recorded
  • rim:.participation[typeCode=AUT].time
MedicationStatement.informationSource
DefinitionThe 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.
Cardinality0...1
TypeReference(UK Core Organization | UK Core Patient | UK Core Practitioner | UK Core RelatedPerson | UK Core PractitionerRole)
Comments

References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • w5:FiveWs.source
  • rim:.participation[typeCode=INF].role[classCode=PAT, or codes for Practioner or Related Person (if PAT is the informer, then syntax for self-reported =true)
MedicationStatement.informationSource.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.informationSource.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.informationSource.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.informationSource.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.informationSource.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.informationSource.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.informationSource.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.informationSource.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.informationSource.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.informationSource.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.informationSource.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.informationSource.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.informationSource.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.informationSource.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.derivedFrom
DefinitionAllows linking the MedicationStatement to the underlying MedicationRequest, or to other information that supports or is used to derive the MedicationStatement.
Cardinality0...*
TypeReference(Resource)
Comments

Likely references would be to MedicationRequest, MedicationDispense, Claim, Observation or QuestionnaireAnswers. The most common use cases for deriving a MedicationStatement comes from creating a MedicationStatement from a MedicationRequest or from a lab observation or a claim. it should be noted that the amount of information that is available varies from the type resource that you derive the MedicationStatement from.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • rim:.outboundRelationship[typeCode=SPRT]/target[classCode=ACT,moodCode=EVN]
MedicationStatement.derivedFrom.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.derivedFrom.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.derivedFrom.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.derivedFrom.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.derivedFrom.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.derivedFrom.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.derivedFrom.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.derivedFrom.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.derivedFrom.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.derivedFrom.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.derivedFrom.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.derivedFrom.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.derivedFrom.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.derivedFrom.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.reasonCode
DefinitionA reason for why the medication is being/was taken.
Cardinality0...*
TypeCodeableConcept
Binding

A coded concept identifying why the medication is being taken.

Condition/Problem/DiagnosisCodes (example)
Comments

This could be a diagnosis code. If a full condition record exists or additional detail is needed, use reasonForUseReference.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • workflow:Event.reasonCode
  • w5:FiveWs.why[x]
  • rim:.reasonCode
MedicationStatement.reasonReference
DefinitionCondition or observation that supports why the medication is being/was taken.
Cardinality0...*
TypeReference(UK Core Condition | UK Core Observation | UK Core DiagnosticReport)
Comments

This is a reference to a condition that is the reason why the medication is being/was taken. If only a code exists, use reasonForUseCode.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • workflow:Event.reasonReference
  • w5:FiveWs.why[x]
  • rim:.outboundRelationship[typeCode=RSON]/target[classCode=OBS,moodCode=EVN, code="reason for use"].value
MedicationStatement.reasonReference.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.reasonReference.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.reasonReference.reference
DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.
Cardinality0...1
Typestring
SummaryTrue
Comments

Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.reasonReference.type
DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).
Cardinality0...1
Typeuri
Binding

Aa resource (or, for logical models, the URI of the logical model).

ResourceType (extensible)
SummaryTrue
Comments

This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.reasonReference.identifier
DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.
Cardinality0...1
TypeIdentifier
SummaryTrue
Comments

When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy.

When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference

Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it.

Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CX / EI (occasionally, more often EI maps to a resource id or a URL)
  • rim:II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
  • servd:Identifier
  • rim:.identifier
MedicationStatement.reasonReference.identifier.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.reasonReference.identifier.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.reasonReference.identifier.use
DefinitionThe purpose of this identifier.
Cardinality0...1
Typecode
Binding

Identifies the purpose for this identifier, if known .

IdentifierUse (required)
ModifierTrue
SummaryTrue
Requirements

Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

Comments

Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Role.code or implied by context
MedicationStatement.reasonReference.identifier.type
DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose.
Cardinality0...1
TypeCodeableConcept
Binding

A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

Identifier Type Codes (extensible)
SummaryTrue
Requirements

Allows users to make use of identifiers when the identifier system is not known.

Comments

This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:CX.5
  • rim:Role.code or implied by context
MedicationStatement.reasonReference.identifier.system
DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique.
Cardinality0...1
Typeuri
SummaryTrue
Requirements

There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

Comments

Identifier.system is always case sensitive.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

http://www.acme.com/identifiers/patient


Mappings
  • rim:n/a
  • v2:CX.4 / EI-2-4
  • rim:II.root or Role.id.root
  • servd:./IdentifierType
MedicationStatement.reasonReference.identifier.value
DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system.
Cardinality0...1
Typestring
SummaryTrue
Comments

If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Examples
General

123456


Mappings
  • rim:n/a
  • v2:CX.1 / EI.1
  • rim:II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
  • servd:./Value
MedicationStatement.reasonReference.identifier.period
DefinitionTime period during which identifier is/was valid for use.
Cardinality0...1
TypePeriod
SummaryTrue
Comments

A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See Duration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • per-1:If present, start SHALL have a lower value than end
    start.hasValue().not() or end.hasValue().not() or (start <= end)
Mappings
  • rim:n/a
  • v2:DR
  • rim:IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]
  • v2:CX.7 + CX.8
  • rim:Role.effectiveTime or implied by context
  • servd:./StartDate and ./EndDate
MedicationStatement.reasonReference.identifier.assigner
DefinitionOrganization that issued/manages the identifier.
Cardinality0...1
TypeReference(UK Core Organization)
SummaryTrue
Comments

The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ref-1:SHALL have a contained resource if a local reference is provided
    reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))
Mappings
  • rim:n/a
  • rim:The target of a resource reference is a RIM entry point (Act, Role, or Entity)
  • v2:CX.4 / (CX.4,CX.9,CX.10)
  • rim:II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper
  • servd:./IdentifierIssuingAuthority
MedicationStatement.reasonReference.display
DefinitionPlain text narrative that identifies the resource in addition to the resource reference.
Cardinality0...1
Typestring
SummaryTrue
Comments

This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.note
DefinitionProvides extra information about the medication statement that is not conveyed by the other attributes.
Cardinality0...*
TypeAnnotation
Comments

For systems that do not have structured annotations, they can simply communicate a single annotation with no author or time. This element may need to be included in narrative because of the potential for modifying information. Annotations SHOULD NOT be used to communicate "modifying" information that could be computable. (This is a SHOULD because enforcing user behavior is nearly impossible).

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Act
  • workflow:Event.note
  • rim:.inboundRelationship[typeCode=SUBJ]/source[classCode=OBS,moodCode=EVN,code="annotation"].value
MedicationStatement.note.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.note.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.note.author[x]
DefinitionThe individual responsible for making the annotation.
Cardinality0...1
TypeReference(UK Core Patient | UK Core Practitioner | UK Core RelatedPerson)
SummaryTrue
Comments

Organization is used when there's no need for specific attribution as to who made the comment.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Act.participant[typeCode=AUT].role
MedicationStatement.note.time
DefinitionIndicates when this particular annotation was made.
Cardinality0...1
TypedateTime
SummaryTrue
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Act.effectiveTime
MedicationStatement.note.text
DefinitionThe text of the annotation in markdown format.
Cardinality1...1
Typemarkdown
SummaryTrue
Comments

Systems are not required to have markdown support, so the text should be readable without markdown processing. The markdown syntax is GFM - see https://github.github.com/gfm/

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:Act.text
MedicationStatement.dosage
DefinitionIndicates how the medication is/was or should be taken by the patient.
Cardinality0...*
TypeDosage
Comments

The dates included in the dosage on a Medication Statement reflect the dates for a given dose. For example, "from November 1, 2016 to November 3, 2016, take one tablet daily and from November 4, 2016 to November 7, 2016, take two tablets daily." It is expected that this specificity may only be populated where the patient brings in their labeled container or where the Medication Statement is derived from a MedicationRequest.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • rim:.outboundRelationship[typeCode=COMP].target[classCode=SBADM, moodCode=INT]
  • rim:refer dosageInstruction mapping
MedicationStatement.dosage.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.dosage.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.dosage.modifierExtension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions. Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).
Cardinality0...*
TypeExtension
ModifierTrue
SummaryTrue
Aliasextensions, user content, modifiers
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.dosage.sequence
DefinitionIndicates the order in which the dosage instructions should be applied or interpreted.
Cardinality0...1
Typeinteger
SummaryTrue
Requirements

If the sequence number of multiple Dosages is the same, then it is implied that the instructions are to be treated as concurrent. If the sequence number is different, then the Dosages are intended to be sequential.

Comments

32 bit number; for values larger than this, use decimal

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:TQ1-1
  • rim:.text
MedicationStatement.dosage.text
DefinitionFree text dosage instructions e.g. SIG.
Cardinality0...1
Typestring
SummaryTrue
Requirements

Free text dosage instructions can be used for cases where the instructions are too complex to code. The content of this attribute does not include the name or description of the medication. When coded instructions are present, the free text instructions may still be present for display to humans taking or administering the medication. It is expected that the text instructions will always be populated. If the dosage.timing attribute is also populated, then the dosage.text should reflect the same information as the timing. Additional information about administration or preparation of the medication should be included as text.

Comments

Note that FHIR strings SHALL NOT exceed 1MB in size

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:RXO-6; RXE-21
  • rim:.text
MedicationStatement.dosage.additionalInstruction
DefinitionSupplemental instructions to the patient on how to take the medication (e.g. "with meals" or"take half to one hour before food") or warnings for the patient about the medication (e.g. "may cause drowsiness" or "avoid exposure of skin to direct sunlight or sunlamps").
Cardinality0...*
TypeCodeableConcept
Binding

A coded concept identifying additional instructions such as "take with water" or "avoid operating heavy machinery".

SNOMEDCTAdditionalDosageInstructions (example)
SummaryTrue
Requirements

Additional instruction is intended to be coded, but where no code exists, the element could include text. For example, "Swallow with plenty of water" which might or might not be coded.

Comments

Information about administration or preparation of the medication (e.g. "infuse as rapidly as possibly via intraperitoneal port" or "immediately following drug x") should be populated in dosage.text.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:RXO-7
  • rim:.text
MedicationStatement.dosage.patientInstruction
DefinitionInstructions in terms that are understood by the patient or consumer.
Cardinality0...1
Typestring
SummaryTrue
Comments

Note that FHIR strings SHALL NOT exceed 1MB in size

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:RXO-7
  • rim:.text
MedicationStatement.dosage.timing
DefinitionWhen medication should be administered.
Cardinality0...1
TypeTiming
SummaryTrue
Requirements

The timing schedule for giving the medication to the patient. This 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.

Comments

This attribute might not always be populated while the Dosage.text is expected to be populated. If both are populated, then the Dosage.text should reflect the content of the Dosage.timing.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:QSET<TS> (GTS)
  • rim:.effectiveTime
MedicationStatement.dosage.asNeeded[x]
DefinitionIndicates 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).
Cardinality0...1
Typeboolean
Binding

A coded concept identifying the precondition that should be met or evaluated prior to consuming or administering a medication dose. For example "pain", "30 minutes prior to sexual intercourse", "on flare-up" etc.

SNOMEDCTMedicationAsNeededReasonCodes (preferred)
SummaryTrue
Comments

Can express "as needed" without a reason by setting the Boolean = True. In this case the CodeableConcept is not populated. Or you can express "as needed" with a reason by including the CodeableConcept. In this case the Boolean is assumed to be True. If you set the Boolean to False, then the dose is given according to the schedule and is not "prn" or "as needed".

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:TQ1-9
  • rim:.outboundRelationship[typeCode=PRCN].target[classCode=OBS, moodCode=EVN, code="as needed"].value=boolean or codable concept
MedicationStatement.dosage.site
DefinitionBody site to administer to.
Cardinality0...1
TypeCodeableConcept
Binding

A coded concept describing the site location the medicine enters into or onto the body.

UKCoreBodySite (preferred)
SummaryTrue
Requirements

A coded specification of the anatomic site where the medication first enters the body.

Comments

If the use case requires attributes from the BodySite resource (e.g. to identify and track separately) then use the standard extension bodySite. May be a summary code, or a reference to a very precise definition of the location, or both.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:RXR-2
  • rim:.approachSiteCode
MedicationStatement.dosage.route
DefinitionHow drug should enter body.
Cardinality0...1
TypeCodeableConcept
Binding

A coded concept describing the route or physiological path of administration of a therapeutic agent into or onto the body of a subject.

UKCoreSubstanceOrProductAdministrationRoute (preferred)
SummaryTrue
Requirements

A code specifying the route or physiological path of administration of a therapeutic agent into or onto a patient's body.

Comments

Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:RXR-1
  • rim:.routeCode
MedicationStatement.dosage.method
DefinitionTechnique for administering medication.
Cardinality0...1
TypeCodeableConcept
Binding

A coded concept describing the technique by which the medicine is administered.

UKCoreMedicationDosageMethod (preferred)
SummaryTrue
Requirements

A coded value indicating the method by which the medication is introduced into or onto the body. Most commonly used for injections. For examples, Slow Push; Deep IV.

Comments

Terminologies used often pre-coordinate this term with the route and or form of administration.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:RXR-4
  • rim:.doseQuantity
MedicationStatement.dosage.doseAndRate
DefinitionThe amount of medication administered.
Cardinality0...*
TypeElement
SummaryTrue
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:TQ1-2
MedicationStatement.dosage.doseAndRate.id
DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality0...1
TypeSystem.String
Mappings
  • rim:n/a
MedicationStatement.dosage.doseAndRate.extension
DefinitionMay be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.
Cardinality0...*
TypeExtension
Aliasextensions, user content
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

SlicingUnordered, Open, by url(Value)
Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • ext-1:Must have either extensions or value[x], not both
    extension.exists() != value.exists()
Mappings
  • rim:n/a
  • rim:N/A
MedicationStatement.dosage.doseAndRate.type
DefinitionThe kind of dose or rate specified, for example, ordered or calculated.
Cardinality0...1
TypeCodeableConcept
Binding

The kind of dose or rate specified.

DoseAndRateType (example)
SummaryTrue
Requirements

If the type is not populated, assume to be "ordered".

Comments

Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:CE/CNE/CWE
  • rim:CD
  • orim:fhir:CodeableConcept rdfs:subClassOf dt:CD
  • v2:RXO-21; RXE-23
MedicationStatement.dosage.doseAndRate.dose[x]
DefinitionAmount of medication per dose.
Cardinality0...1
TypeRange
SummaryTrue
Requirements

The amount of therapeutic or other substance given at one administration event.

Comments

Note that this specifies the quantity of the specified medication, not the quantity for each active ingredient(s). Each ingredient amount can be communicated in the Medication resource. For example, if one wants to communicate that a tablet was 375 mg, where the dose was one tablet, you can use the Medication resource to document that the tablet was comprised of 375 mg of drug XYZ. Alternatively if the dose was 375 mg, then you may only need to use the Medication resource to indicate this was a tablet. If the example were an IV such as dopamine and you wanted to communicate that 400mg of dopamine was mixed in 500 ml of some IV solution, then this would all be communicated in the Medication resource. If the administration is not intended to be instantaneous (rate is present or timing has a duration), this can be specified to convey the total amount to be administered over the period of time as indicated by the schedule e.g. 500 ml in dose, with timing used to convey that this should be done over 4 hours.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:RXO-2, RXE-3
  • rim:.doseQuantity
MedicationStatement.dosage.doseAndRate.rate[x]
DefinitionAmount of medication per unit of time.
Cardinality0...1
TypeRatio
SummaryTrue
Requirements

Identifies 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.

Comments

It is possible to supply both a rate and a doseQuantity to provide full details about how the medication is to be administered and supplied. If the rate is intended to change over time, depending on local rules/regulations, each change should be captured as a new version of the MedicationRequest with an updated rate, or captured with a new MedicationRequest with the new rate.

It is possible to specify a rate over time (for example, 100 ml/hour) using either the rateRatio and rateQuantity. The rateQuantity approach requires systems to have the capability to parse UCUM grammer where ml/hour is included rather than a specific ratio where the time is specified as the denominator. Where a rate such as 500ml over 2 hours is specified, the use of rateRatio may be more semantically correct than specifying using a rateQuantity of 250 mg/hour.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
Mappings
  • rim:n/a
  • v2:RXE22, RXE23, RXE-24
  • rim:.rateQuantity
MedicationStatement.dosage.maxDosePerPeriod
DefinitionUpper limit on medication per unit of time.
Cardinality0...1
TypeRatio
SummaryTrue
Requirements

The 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.

Comments

This is intended for use as an adjunct to the dosage when there is an upper cap. For example "2 tablets every 4 hours to a maximum of 8/day".

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • rat-1:Numerator and denominator SHALL both be present, or both are absent. If both are absent, there SHALL be some extension present
    (numerator.empty() xor denominator.exists()) and (numerator.exists() or extension.exists())
Mappings
  • rim:n/a
  • v2:N/A
  • rim:RTO
  • v2:RXO-23, RXE-19
  • rim:.maxDoseQuantity
MedicationStatement.dosage.maxDosePerAdministration
DefinitionUpper limit on medication per administration.
Cardinality0...1
TypeSimpleQuantity
SummaryTrue
Requirements

The maximum total quantity of a therapeutic substance that may be administered to a subject per administration.

Comments

This is intended for use as an adjunct to the dosage when there is an upper cap. For example, a body surface area related dose with a maximum amount, such as 1.5 mg/m2 (maximum 2 mg) IV over 5 – 10 minutes would have doseQuantity of 1.5 mg/m2 and maxDosePerAdministration of 2 mg.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • qty-3:If a code for the unit is present, the system SHALL also be present
    code.empty() or system.exists()
  • sqty-1:The comparator is not used on a SimpleQuantity
    comparator.empty()
Mappings
  • rim:n/a
  • v2:SN (see also Range) or CQ
  • rim:PQ, IVL<PQ>, MO, CO, depending on the values
  • rim:not supported
MedicationStatement.dosage.maxDosePerLifetime
DefinitionUpper limit on medication per lifetime of the patient.
Cardinality0...1
TypeSimpleQuantity
SummaryTrue
Requirements

The maximum total quantity of a therapeutic substance that may be administered per lifetime of the subject.

Comments

The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. The context of use may also restrict the values for the comparator.

Invariants
  • ele-1:All FHIR elements must have a @value or children
    hasValue() or (children().count() > id.count())
  • qty-3:If a code for the unit is present, the system SHALL also be present
    code.empty() or system.exists()
  • sqty-1:The comparator is not used on a SimpleQuantity
    comparator.empty()
Mappings
  • rim:n/a
  • v2:SN (see also Range) or CQ
  • rim:PQ, IVL<PQ>, MO, CO, depending on the values
  • rim:not supported
{
    "resourceType": "Bundle",
    "id": "ec6077a4-553f-4087-944c-ea04c4593e3a",
    "identifier": {
        "system": "https://tools.ietf.org/html/rfc4122",
        "value": "86af4f6c-30c5-4947-acc7-2f55145181de"
    },
    "type": "searchset",
    "entry":  [
        {
            "fullUrl": "8e357e94-8e5c-496f-92d6-5d14f2e70016",
            "resource": {
                "resourceType": "MedicationStatement",
                "id": "44f85d15-8744-47c2-a790-4f5e38aacdb0",
                "meta": {
                    "profile":  [
                        "https://fhir.hl7.org.uk/StructureDefinition/UKCore-MedicationStatement"
                    ]
                },
                "identifier":  [
                    {
                        "system": "https://tools.ietf.org/html/rfc4122",
                        "value": "fbf914b7-bb28-43e3-84ad-ab389dc1231f"
                    }
                ],
                "basedOn":  [
                    {
                        "reference": "MedicationRequest/0ae6ac98-6b0f-404f-a95b-c38a4318f686",
                        "display": "Repeat prescription request for Aspirin 300mg Dispersible tablets."
                    }
                ],
                "status": "active",
                "medicationCodeableConcept": {
                    "coding":  [
                        {
                            "system": "https://dmd.nhs.uk",
                            "code": "329526003",
                            "display": "Aspirin 300mg dispersible tablets"
                        }
                    ]
                },
                "subject": {
                    "reference": "Patient/9000000009",
                    "identifier": {
                        "system": "https://fhir.nhs.uk/Id/nhs-number",
                        "value": "9000000009"
                    },
                    "display": "Jane Smith"
                },
                "effectivePeriod": {
                    "start": "2022-10-23T13:50:00+00:00",
                    "end": "2023-01-10T13:50:00+00:00"
                },
                "dateAsserted": "2022-11-23",
                "dosage":  [
                    {
                        "text": "2 tablet - 4 times a day - at a meal - Dissolve or mix with water before taking - up to a maximum of 3.6 gram in 24 hours",
                        "additionalInstruction":  [
                            {
                                "coding":  [
                                    {
                                        "system": "http://snomed.info/sct",
                                        "code": "417995008",
                                        "display": "Dissolve or mix with water before taking"
                                    }
                                ]
                            }
                        ],
                        "timing": {
                            "repeat": {
                                "frequency": 4,
                                "period": 1,
                                "periodUnit": "d",
                                "when":  [
                                    "C"
                                ]
                            }
                        },
                        "doseAndRate":  [
                            {
                                "doseQuantity": {
                                    "value": 2,
                                    "unit": "tablet",
                                    "system": "http://snomed.info/sct",
                                    "code": "428673006"
                                }
                            }
                        ]
                    }
                ]
            }
        },
        {
            "fullUrl": "a5b1910d-3241-4eed-9b5e-cb9d239e9fd7",
            "resource": {
                "resourceType": "MedicationStatement",
                "id": "4a3f265d-1c12-4aa1-9d22-49b7c5aa2048",
                "meta": {
                    "profile":  [
                        "https://fhir.hl7.org.uk/StructureDefinition/UKCore-MedicationStatement"
                    ]
                },
                "extension":  [
                    {
                        "url": "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationStatementLastIssueDate",
                        "valueDateTime": "2017-02-24"
                    }
                ],
                "identifier":  [
                    {
                        "system": "https://tools.ietf.org/html/rfc4122",
                        "value": "504e8d5b-0444-41ae-b5b7-f6f161b2bbbc"
                    }
                ],
                "basedOn":  [
                    {
                        "reference": "MedicationRequest/0f450c33-67b2-4ca3-b0f9-fea75ccdcd44",
                        "display": "Acute prescription request for Amoxicillin 250mg capsules."
                    }
                ],
                "status": "active",
                "medicationCodeableConcept": {
                    "coding":  [
                        {
                            "system": "https://dmd.nhs.uk",
                            "code": "39732311000001104",
                            "display": "Amoxicillin 250mg capsules"
                        }
                    ]
                },
                "subject": {
                    "reference": "Patient/9000000009",
                    "identifier": {
                        "system": "https://fhir.nhs.uk/Id/nhs-number",
                        "value": "9000000009"
                    },
                    "display": "Jane Smith"
                },
                "effectivePeriod": {
                    "start": "2022-10-23T13:50:00+00:00",
                    "end": "2023-01-10T13:50:00+00:00"
                },
                "dateAsserted": "2022-11-23",
                "dosage":  [
                    {
                        "text": "2 capsules 4 times a day.",
                        "timing": {
                            "repeat": {
                                "frequency": 4,
                                "period": 1,
                                "periodUnit": "d"
                            }
                        },
                        "asNeededCodeableConcept": {
                            "coding":  [
                                {
                                    "system": "http://snomed.info/sct",
                                    "code": "301354004",
                                    "display": "Pain of ear"
                                }
                            ]
                        },
                        "site": {
                            "coding":  [
                                {
                                    "system": "http://snomed.info/sct",
                                    "code": "123851003",
                                    "display": "Mouth region structure"
                                }
                            ]
                        },
                        "route": {
                            "coding":  [
                                {
                                    "system": "http://snomed.info/sct",
                                    "code": "26643006",
                                    "display": "Oral route"
                                }
                            ]
                        },
                        "method": {
                            "coding":  [
                                {
                                    "system": "http://snomed.info/sct",
                                    "code": "421984009",
                                    "display": "Until finished"
                                }
                            ]
                        },
                        "doseAndRate":  [
                            {
                                "doseQuantity": {
                                    "value": 500,
                                    "unit": "milligram",
                                    "system": "http://unitsofmeasure.org",
                                    "code": "mg"
                                }
                            }
                        ]
                    }
                ]
            }
        }
    ]
}

Minimum Viable Content

A minimum viable content that all provider and consumer systems should support is the following elements.

Element Required?
id
meta.profile
extension[pharmacistVerifiedIndicator]
extension[medicationPrescribingOrganization]
extension[medicationStatementLastIssued]
identifier
basedOn
partOf
status
statusReason
category
medicationCodeableConcept
subject
context
effectivePeriod
dateAsserted
informationSource
derivedFrom
reasonCode
reasonReference
note
dosage

id

DataType Optionality Cardinality
Identifier Mandatory 1..1

The logical identifier of the MedicationStatement resource.

Example

 "id":"44f85d15-8744-47c2-a790-4f5e38aacdb0" 


meta.profile

DataType Optionality Cardinality
URI Mandatory 1..1

The MedicationStatement profile URL.

Fixed value: https://fhir.hl7.org.uk/StructureDefinition/UKCore-MedicationStatement

Example

  "meta": {
    "profile": [
      "https://fhir.hl7.org.uk/StructureDefinition/UKCore-MedicationStatement"
    ]


identifier

DataType Optionality Cardinality
Identifier Required 0..*

This must be populated with a globally unique and persistent identifier (that is, it doesn’t change between requests and therefore stored with the source data).

Where consuming systems are integrating data from this resource to their local system, they must also persist this identifier at the same time.

Example

    "identifier": {
      "system": "https://tools.ietf.org/html/rfc4122",
      "value": "123jkwndf-1234-dgdg-134dd-4f5e38aacdb0"
    },


basedOn

DataType Optionality Cardinality
Reference Required 0..*

Must reference a MedicationRequest within the basedOn attribute: MedicationRequests provide details of specific prescriptions. The referenced MedicationRequest must have intent of plan.

The display within basedOn should quote the courseOfTherapyType from the referenced MedicationRequest, showing the prescription treatment type.

Example

      "basedOn" : {
        "reference" : "MedicationRequest/0f450c33-67b2-4ca3-b0f9-fea75ccdcd44",
        "display" : "Prescription request for Amoxicillin 250mg capsules."
      },


status

DataType Optionality Cardinality
Code Mandatory 1..1

The status of the authorisation.

Use one of active, completed or stopped:

  • active represents an active authorisation - used for active repeat medications/medical devices

  • stopped represents an authorisation which has been discontinued, cancelled or stopped

  • complete represents an authorisation which has run its course

For repeat and repeat dispensed the status refers to the status of the plan (the entire cycle of prescriptions).

For acute, the status refers to the status of the prescription issue.

Example

 "status": active


medicationCodeableConcept

DataType Optionality Cardinality
Code Mandatory 1..1

Where the requested medication is contained within the NHS dm+d then it must be recorded using the dm+d standard.

  • The medicationCodeableConcept.coding.code should be the code for the medication.

  • The medicationCodeableConcept.coding.display should be the description for the medication, i.e. the same value as medicationCodeableConcept.text.

Example

    "medicationCodeableConcept": [
      {
        "coding": [
          {
            "system": "http://snomed.info/ct",
            "code": 3113111000001106,
            "display": "Pulmicort 100 Turbohaler (AstraZeneca UK Ltd)"
          }
        ]
      }
    ]


subject

DataType Optionality Cardinality
Reference(Patient) required 1..1

Who the medication/medical device is for - that is, to whom it will be administered.

Reference to Patient.

Example

"subject": {
    "reference": "Patient/9000000009",
    "identifier": {
        "system": "https://fhir.nhs.uk/Id/nhs-number",
        "value": "9000000009"
    },
    "display": "Jane Smith"
},


effectivePeriod

DataType Optionality Cardinality
Period Required 0..1

The period the medication or medical device is authorised under this medication/medical device plan. For items that are repeats and repeat dispensed this refers to the entire cycle of prescriptions made under the authorisation. For acutes, this refers to the period of the prescription issue.

effectivePeriod.start is mandatory

The date from which the medication or medical device is authorised under this plan.

Use one of the following dates in order of descending preference:

  • the authorised date as recorded in the patient record

    • for authorisation that were performed during a consultation this will be the date when the consultation took place
  • the date of the first issue under the medication/medical device plan

  • the date the medication/medical device plan was recorded onto the system (the audit date)

effectivePeriod.end is required

The date when the authorisation under this plan ends.

Where the medication/medical device plan is still active, set to null.

Where the medication/medical device plan has ended use one of the following dates in order of descending preference:

  • the end date recorded in the patient record

  • the end date of the final issue under the medication/medical device plan. This is the start date of the final issue plus the expected supply duration.

  • the date the plan was updated to ended

  • the Period.start date

  • this option should only occur where data has been lost (for example, during the record transfer between two systems) and is used to ensure that an ended plan will always have an end date

Example

    "effectivePeriod": {
      "start": "2022-10-23T13:50:00+00:00",
      "end": "2023-01-10T13:50:00+00:00"
    },


dateAsserted

DataType Optionality Cardinality
dateTime Required 0..1

When this medication statement was believed true.

Unless there is a distinct user-modifiable availability date/time for the authorisation, this is the audit trail date/time for when the authorisation was entered.

Example

    "dateAsserted": "2022-11-23T13:50:00+00:00",


dosage

DataType Optionality Cardinality
Dosage Required 0..*

Preferable as a structured dosage aligned to the FHIR Dose Syntax Guidance but as a minimum, dosage.text must be used.


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