Please note:

This version of the UK Core is a development copy.
This contains BREAKING CHANGES as a result of the C&TA Sprint 7 Review, and STU2 Sequence ballot reconciliation.
This version is not yet reviewed for implementation. Other versions are available on the UK Core Version History Guide
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StructureDefinition UKCore-Medication

Canonical_URL	Status	Current_Version	Last_Updated	Description
https://fhir.hl7.org.uk/StructureDefinition/UKCore-Medication	active	2.3.0	2023-12-12	This profile defines the UK constraints and extensions on the International FHIR resource Medication.

Profile_Purpose
This profile is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use.

UKCoreMedication (Medication)	I		Medication	There are no (further) constraints on this element Element id Medication Short description Definition of a Medication Definition This resource is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use. Data type Medication Constraints 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 script10.6: NewRx/MedicationPrescribed -or- RxFill/MedicationDispensed -or- RxHistoryResponse/MedicationDispensed -or- RxHistoryResponse/MedicationPrescribed rim: ManufacturedProduct[classCode=ADMM]
id	Σ	0..1	string	There are no (further) constraints on this element Element id Medication.id Short description Logical id of this artifact Definition The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. 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. Data type string
meta	Σ	0..1	Meta	There are no (further) constraints on this element Element id Medication.meta Short description Metadata about the resource Definition The 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. Data type Meta Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: N/A
implicitRules	Σ ?!	0..1	uri	There are no (further) constraints on this element Element id Medication.implicitRules Short description A set of rules under which this content was created Definition A 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. 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. Data type uri Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
language		0..1	codeBinding	There are no (further) constraints on this element Element id Medication.language Short description Language of the resource content Definition The base language in which the resource is written. 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). Data type code Binding A human language. CommonLanguages (preferred) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a
text		0..1	Narrative	There are no (further) constraints on this element Element id Medication.text Short description Text summary of the resource, for human interpretation Alternate names narrative, html, xhtml, display Definition A 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. 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. Data type Narrative Constraints 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?
contained		0..*	Resource	There are no (further) constraints on this element Element id Medication.contained Short description Contained, inline Resources Alternate names inline resources, anonymous resources, contained resources Definition These 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. 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. Data type Resource Mappings rim: Entity. Role, or Act rim: N/A
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Medication.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May 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. 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints 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
MedicationTradeFamily	I	0..1	Extension(CodeableConcept)	Element id Medication.extension:MedicationTradeFamily Short description Used to identify a Trade Family or brand associated with a Medication, specifically when the medication is defined using a dm+d Virtual Therapeutic Moiety (VTM) concept Alternate names extensions, user content Definition A Trade Family or brand associated with a Medication, in particular a Virtual Therapeutic Moiety (VTM). 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. Data type Extension(CodeableConcept) Extension URL https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily Constraints 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
modifierExtension	?! I	0..*	Extension	There are no (further) constraints on this element Element id Medication.modifierExtension Short description Extensions that cannot be ignored Alternate names extensions, user content Definition May 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). 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints 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
identifier	Σ	0..*	Identifier	There are no (further) constraints on this element Element id Medication.identifier Short description Business identifier for this medication Definition Business identifier for this medication. Comments The serial number could be included as an identifier. Data type Identifier Constraints 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 w5: FiveWs.identifier rim: .id
code	S Σ	1..1	CodeableConceptBinding	Element id Medication.code Short description Codes that identify this medication Definition A code (or set of codes) that specify this medication, or a textual description if no code is available. Usage note: This could be a standard medication code such as a code from RxNorm, SNOMED CT, IDMP etc. It could also be a national or local formulary code, optionally with translations to other code systems. Comments Depending on the context of use, the code that was actually selected by the user (prescriber, dispenser, etc.) will have the coding.userSelected set to true. As described in the coding datatype: "A coding may be marked as a "userSelected" if a user selected the particular coded value in a user interface (e.g. the user selects an item in a pick-list). If a user selected coding exists, it is the preferred choice for performing translations etc. Other codes can only be literal translations to alternative code systems, or codes at a lower level of granularity (e.g. a generic code for a vendor-specific primary one). Data type CodeableConcept Binding A coded concept that defines the type of a medication. UKCoreMedicationCode (preferred) Constraints 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 script10.6: coding.code = //element(,MedicationType)/DrugCoded/ProductCode coding.system = //element(,MedicationType)/DrugCoded/ProductCodeQualifier coding.display = //element(,MedicationType)/DrugDescription w5:* FiveWs.class v2: RXO-1.1-Requested Give Code.code / RXE-2.1-Give Code.code / RXD-2.1-Dispense/Give Code.code / RXG-4.1-Give Code.code /RXA-5.1-Administered Code.code / RXC-2.1 Component Code rim: .code
status	Σ ?!	0..1	codeBinding	There are no (further) constraints on this element Element id Medication.status Short description active \| inactive \| entered-in-error Definition A code to indicate if the medication is in active use. Comments This status is intended to identify if the medication in a local system is in active use within a drug database or inventory. For example, a pharmacy system may create a new drug file record for a compounded product "ABC Hospital Special Cream" with an active status. At some point in the future, it may be determined that the drug record was created with an error and the status is changed to "entered in error". This status is not intended to specify if a medication is part of a particular formulary. It is possible that the drug record may be referenced by multiple formularies or catalogues and each of those entries would have a separate status. Data type code Binding A coded concept defining if the medication is in active use. Medication Status Codes (required) Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: .statusCode
manufacturer	Σ I	0..1	Reference(Organization)	There are no (further) constraints on this element Element id Medication.manufacturer Short description Manufacturer of the item Definition Describes the details of the manufacturer of the medication product. This is not intended to represent the distributor of a medication product. 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. Data type Reference(Organization) Constraints 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) script10.6: no mapping w5: FiveWs.actor v2: RXD-20-Substance Manufacturer Name / RXG-21-Substance Manufacturer Name / RXA-17-Substance Manufacturer Name rim: .player.scopingRole[typeCode=MANU].scoper
form		0..1	CodeableConceptBinding	Element id Medication.form Short description powder \| tablets \| capsule + Definition Describes the form of the item. Powder; tablets; capsule. Comments When Medication is referenced from MedicationRequest, this is the ordered form. When Medication is referenced within MedicationDispense, this is the dispensed form. When Medication is referenced within MedicationAdministration, this is administered form. Data type CodeableConcept Binding A coded concept defining the form of a medication. UKCoreMedicationForm (preferred) Constraints 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 script10.6: coding.code = //element(,DrugCodedType)/FormCode coding.system = //element(,DrugCodedType)/FormSourceCode v2: RXO-5-Requested Dosage Form / RXE-6-Give Dosage Form / RXD-6-Actual Dosage Form / RXG-8-Give Dosage Form / RXA-8-Administered Dosage Form rim: .formCode
amount	Σ I	0..1	Ratio	There are no (further) constraints on this element Element id Medication.amount Short description Amount of drug in package Definition Specific amount of the drug in the packaged product. For example, when specifying a product that has the same strength (For example, Insulin glargine 100 unit per mL solution for injection), this attribute provides additional clarification of the package amount (For example, 3 mL, 10mL, etc.). Comments The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio. Data type Ratio Constraints 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 rim: .quantity
ingredient		0..*	BackboneElement	There are no (further) constraints on this element Element id Medication.ingredient Short description Active or inactive ingredient Definition Identifies a particular constituent of interest in the product. Comments The ingredients need not be a complete list. If an ingredient is not specified, this does not indicate whether an ingredient is present or absent. If an ingredient is specified it does not mean that all ingredients are specified. It is possible to specify both inactive and active ingredients. Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: .scopesRole[typeCode=INGR]
id		0..1	string	There are no (further) constraints on this element Element id Medication.ingredient.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Medication.ingredient.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May 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. 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints 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
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Medication.ingredient.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May 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). 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. Data type Extension Constraints 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
item[x]		1..1		There are no (further) constraints on this element Element id Medication.ingredient.item[x] Short description The actual ingredient or content Definition The actual ingredient - either a substance (simple ingredient) or another medication of a medication. Requirements The ingredient may reference a substance (for example, amoxicillin) or another medication (for example in the case of a compounded product, Glaxal Base). Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a script10.6: coding.code = //element(,MedicationType)/DrugCoded/ProductCode coding.system = //element(,MedicationType)/DrugCoded/ProductCodeQualifier coding.display = //element(,MedicationType)/DrugDescription v2:* RXC-2-Component Code if medication: RXO-1-Requested Give Code / RXE-2-Give Code / RXD-2-Dispense/Give Code / RXG-4-Give Code / RXA-5-Administered Code rim: .player
itemCodeableConcept			CodeableConcept	There are no (further) constraints on this element Data type CodeableConcept
itemReference			Reference(Substance \| Medication)	There are no (further) constraints on this element Data type Reference(Substance \| Medication)
isActive		0..1	boolean	There are no (further) constraints on this element Element id Medication.ingredient.isActive Short description Active ingredient indicator Definition Indication of whether this ingredient affects the therapeutic action of the drug. Requirements True indicates that the ingredient affects the therapeutic action of the drug (i.e. active). False indicates that the ingredient does not affect the therapeutic action of the drug (i.e. inactive). Data type boolean Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a rim: NA
strength	I	0..1	Ratio	There are no (further) constraints on this element Element id Medication.ingredient.strength Short description Quantity of ingredient present Definition Specifies how many (or how much) of the items there are in this Medication. For example, 250 mg per tablet. This is expressed as a ratio where the numerator is 250mg and the denominator is 1 tablet. Comments The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio. Data type Ratio Constraints 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 script10.6: //element(,DrugCodedType)/Strength v2:* RXC-3-Component Amount & RXC-4-Component Units if medication: RXO-2-Requested Give Amount - Minimum & RXO-4-Requested Give Units / RXO-3-Requested Give Amount - Maximum & RXO-4-Requested Give Units / RXO-11-Requested Dispense Amount & RXO-12-Requested Dispense Units / RXE-3-Give Amount - Minimum & RXE-5-Give Units / RXE-4-Give Amount - Maximum & RXE-5-Give Units / RXE-10-Dispense Amount & RXE-10-Dispense Units rim: .quantity
batch		0..1	BackboneElement	There are no (further) constraints on this element Element id Medication.batch Short description Details about packaged medications Definition Information that only applies to packages (not products). Data type BackboneElement Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a script10.6: no mapping rim: .player[classCode=CONT]
id		0..1	string	There are no (further) constraints on this element Element id Medication.batch.id Short description Unique id for inter-element referencing Definition Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. Data type string Mappings rim: n/a
extension	I	0..*	Extension	There are no (further) constraints on this element Element id Medication.batch.extension Short description Additional content defined by implementations Alternate names extensions, user content Definition May 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. 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. Data type Extension Sliced: Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints 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
modifierExtension	Σ ?! I	0..*	Extension	There are no (further) constraints on this element Element id Medication.batch.modifierExtension Short description Extensions that cannot be ignored even if unrecognized Alternate names extensions, user content, modifiers Definition May 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). 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. Data type Extension Constraints 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
lotNumber		0..1	string	There are no (further) constraints on this element Element id Medication.batch.lotNumber Short description Identifier assigned to batch Definition The assigned lot number of a batch of the specified product. Comments Note that FHIR strings SHALL NOT exceed 1MB in size Data type string Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a script10.6: no mapping v2: RXA-15 Substance Lot Number / RXG-19 Substance Lot Number rim: .id
expirationDate		0..1	dateTime	There are no (further) constraints on this element Element id Medication.batch.expirationDate Short description When batch will expire Definition When this specific batch of product will expire. Data type dateTime Constraints ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())` Mappings rim: n/a script10.6: no mapping v2: RXA-16 Substance Expiration Date / RXG-20 Substance Expiration Date rim: participation[typeCode=CSM].role[classCode=INST].scopedRole.scoper[classCode=MMAT].expirationTime

Detailed Descriptions

Medication
Definition	This resource is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use.
Cardinality	0...*
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 script10.6: NewRx/MedicationPrescribed -or- RxFill/MedicationDispensed -or- RxHistoryResponse/MedicationDispensed -or- RxHistoryResponse/MedicationPrescribed rim: ManufacturedProduct[classCode=ADMM]
Medication.id
Definition	The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Cardinality	0...1
Type	string
Summary	True
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.
Medication.meta
Definition	The 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.
Cardinality	0...1
Type	Meta
Summary	True
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
Medication.implicitRules
Definition	A 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.
Cardinality	0...1
Type	uri
Modifier	True
Summary	True
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
Medication.language
Definition	The base language in which the resource is written.
Cardinality	0...1
Type	code
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
Medication.text
Definition	A 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.
Cardinality	0...1
Type	Narrative
Alias	narrative, 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?
Medication.contained
Definition	These 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.
Cardinality	0...*
Type	Resource
Alias	inline 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
Medication.extension
Definition	May 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.
Cardinality	0...*
Type	Extension
Alias	extensions, 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.
Slicing	Unordered, 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
Medication.extension:MedicationTradeFamily
Definition	A Trade Family or brand associated with a Medication, in particular a Virtual Therapeutic Moiety (VTM).
Cardinality	0...1
Type	Extension(CodeableConcept)
Alias	extensions, 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
Medication.modifierExtension
Definition	May 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).
Cardinality	0...*
Type	Extension
Modifier	True
Alias	extensions, 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.
Slicing	Unordered, 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
Medication.identifier
Definition	Business identifier for this medication.
Cardinality	0...*
Type	Identifier
Summary	True
Comments	The serial number could be included as an 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 w5: FiveWs.identifier rim: .id
Medication.code
Definition	A code (or set of codes) that specify this medication, or a textual description if no code is available. Usage note: This could be a standard medication code such as a code from RxNorm, SNOMED CT, IDMP etc. It could also be a national or local formulary code, optionally with translations to other code systems.
Cardinality	1...1
Type	CodeableConcept
Binding	A coded concept that defines the type of a medication. UKCoreMedicationCode (preferred)
Must Support	True
Summary	True
Comments	Depending on the context of use, the code that was actually selected by the user (prescriber, dispenser, etc.) will have the coding.userSelected set to true. As described in the coding datatype: "A coding may be marked as a "userSelected" if a user selected the particular coded value in a user interface (e.g. the user selects an item in a pick-list). If a user selected coding exists, it is the preferred choice for performing translations etc. Other codes can only be literal translations to alternative code systems, or codes at a lower level of granularity (e.g. a generic code for a vendor-specific primary one).
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 script10.6: coding.code = //element(,MedicationType)/DrugCoded/ProductCode coding.system = //element(,MedicationType)/DrugCoded/ProductCodeQualifier coding.display = //element(,MedicationType)/DrugDescription w5:* FiveWs.class v2: RXO-1.1-Requested Give Code.code / RXE-2.1-Give Code.code / RXD-2.1-Dispense/Give Code.code / RXG-4.1-Give Code.code /RXA-5.1-Administered Code.code / RXC-2.1 Component Code rim: .code
Medication.status
Definition	A code to indicate if the medication is in active use.
Cardinality	0...1
Type	code
Binding	A coded concept defining if the medication is in active use. Medication Status Codes (required)
Modifier	True
Summary	True
Comments	This status is intended to identify if the medication in a local system is in active use within a drug database or inventory. For example, a pharmacy system may create a new drug file record for a compounded product "ABC Hospital Special Cream" with an active status. At some point in the future, it may be determined that the drug record was created with an error and the status is changed to "entered in error". This status is not intended to specify if a medication is part of a particular formulary. It is possible that the drug record may be referenced by multiple formularies or catalogues and each of those entries would have a separate status.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: .statusCode
Medication.manufacturer
Definition	Describes the details of the manufacturer of the medication product. This is not intended to represent the distributor of a medication product.
Cardinality	0...1
Type	Reference(Organization)
Summary	True
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) script10.6: no mapping w5: FiveWs.actor v2: RXD-20-Substance Manufacturer Name / RXG-21-Substance Manufacturer Name / RXA-17-Substance Manufacturer Name rim: .player.scopingRole[typeCode=MANU].scoper
Medication.form
Definition	Describes the form of the item. Powder; tablets; capsule.
Cardinality	0...1
Type	CodeableConcept
Binding	A coded concept defining the form of a medication. UKCoreMedicationForm (preferred)
Comments	When Medication is referenced from MedicationRequest, this is the ordered form. When Medication is referenced within MedicationDispense, this is the dispensed form. When Medication is referenced within MedicationAdministration, this is administered form.
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 script10.6: coding.code = //element(,DrugCodedType)/FormCode coding.system = //element(,DrugCodedType)/FormSourceCode v2: RXO-5-Requested Dosage Form / RXE-6-Give Dosage Form / RXD-6-Actual Dosage Form / RXG-8-Give Dosage Form / RXA-8-Administered Dosage Form rim: .formCode
Medication.amount
Definition	Specific amount of the drug in the packaged product. For example, when specifying a product that has the same strength (For example, Insulin glargine 100 unit per mL solution for injection), this attribute provides additional clarification of the package amount (For example, 3 mL, 10mL, etc.).
Cardinality	0...1
Type	Ratio
Summary	True
Comments	The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.
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 rim: .quantity
Medication.ingredient
Definition	Identifies a particular constituent of interest in the product.
Cardinality	0...*
Type	BackboneElement
Comments	The ingredients need not be a complete list. If an ingredient is not specified, this does not indicate whether an ingredient is present or absent. If an ingredient is specified it does not mean that all ingredients are specified. It is possible to specify both inactive and active ingredients.
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: .scopesRole[typeCode=INGR]
Medication.ingredient.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality	0...1
Type	string
Mappings	rim: n/a
Medication.ingredient.extension
Definition	May 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.
Cardinality	0...*
Type	Extension
Alias	extensions, 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.
Slicing	Unordered, 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
Medication.ingredient.modifierExtension
Definition	May 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).
Cardinality	0...*
Type	Extension
Modifier	True
Summary	True
Alias	extensions, 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
Medication.ingredient.item[x]
Definition	The actual ingredient - either a substance (simple ingredient) or another medication of a medication.
Cardinality	1...1
Type	CodeableConcept
Requirements	The ingredient may reference a substance (for example, amoxicillin) or another medication (for example in the case of a compounded product, Glaxal Base).
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a script10.6: coding.code = //element(,MedicationType)/DrugCoded/ProductCode coding.system = //element(,MedicationType)/DrugCoded/ProductCodeQualifier coding.display = //element(,MedicationType)/DrugDescription v2:* RXC-2-Component Code if medication: RXO-1-Requested Give Code / RXE-2-Give Code / RXD-2-Dispense/Give Code / RXG-4-Give Code / RXA-5-Administered Code rim: .player
Medication.ingredient.isActive
Definition	Indication of whether this ingredient affects the therapeutic action of the drug.
Cardinality	0...1
Type	boolean
Requirements	True indicates that the ingredient affects the therapeutic action of the drug (i.e. active). False indicates that the ingredient does not affect the therapeutic action of the drug (i.e. inactive).
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a rim: NA
Medication.ingredient.strength
Definition	Specifies how many (or how much) of the items there are in this Medication. For example, 250 mg per tablet. This is expressed as a ratio where the numerator is 250mg and the denominator is 1 tablet.
Cardinality	0...1
Type	Ratio
Comments	The Ratio datatype should only be used to express a relationship of two numbers if the relationship cannot be suitably expressed using a Quantity and a common unit. Where the denominator value is known to be fixed to "1", Quantity should be used instead of Ratio.
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 script10.6: //element(,DrugCodedType)/Strength v2:* RXC-3-Component Amount & RXC-4-Component Units if medication: RXO-2-Requested Give Amount - Minimum & RXO-4-Requested Give Units / RXO-3-Requested Give Amount - Maximum & RXO-4-Requested Give Units / RXO-11-Requested Dispense Amount & RXO-12-Requested Dispense Units / RXE-3-Give Amount - Minimum & RXE-5-Give Units / RXE-4-Give Amount - Maximum & RXE-5-Give Units / RXE-10-Dispense Amount & RXE-10-Dispense Units rim: .quantity
Medication.batch
Definition	Information that only applies to packages (not products).
Cardinality	0...1
Type	BackboneElement
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a script10.6: no mapping rim: .player[classCode=CONT]
Medication.batch.id
Definition	Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
Cardinality	0...1
Type	string
Mappings	rim: n/a
Medication.batch.extension
Definition	May 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.
Cardinality	0...*
Type	Extension
Alias	extensions, 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.
Slicing	Unordered, 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
Medication.batch.modifierExtension
Definition	May 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).
Cardinality	0...*
Type	Extension
Modifier	True
Summary	True
Alias	extensions, 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
Medication.batch.lotNumber
Definition	The assigned lot number of a batch of the specified product.
Cardinality	0...1
Type	string
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 script10.6: no mapping v2: RXA-15 Substance Lot Number / RXG-19 Substance Lot Number rim: .id
Medication.batch.expirationDate
Definition	When this specific batch of product will expire.
Cardinality	0...1
Type	dateTime
Invariants	ele-1: All FHIR elements must have a @value or children `hasValue() or (children().count() > id.count())`
Mappings	rim: n/a script10.6: no mapping v2: RXA-16 Substance Expiration Date / RXG-20 Substance Expiration Date rim: participation[typeCode=CSM].role[classCode=INST].scopedRole.scoper[classCode=MMAT].expirationTime

Table View

Medication		..
Medication.extension	Extension	..
Medication.code		1..
Medication.form		..

XML View

<StructureDefinition xmlns="http://hl7.org/fhir">
    <id value="UKCore-Medication" />
    <url value="https://fhir.hl7.org.uk/StructureDefinition/UKCore-Medication" />
    <version value="2.3.0" />
    <name value="UKCoreMedication" />
    <title value="UK Core Medication" />
    <status value="active" />
    <date value="2023-12-12" />
    <publisher value="HL7 UK" />
    <contact>
        <name value="HL7 UK" />
        <telecom>
            <system value="email" />
            <value value="ukcore@hl7.org.uk" />
            <use value="work" />
            <rank value="1" />
        </telecom>
    </contact>
    <description value="This profile defines the UK constraints and extensions on the International FHIR resource [Medication](https://hl7.org/fhir/R4/Medication.html)." />
    <purpose value="This profile is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use." />
    <copyright value="Copyright &#169; 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the &quot;License&quot;); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7&#174; FHIR&#174; standard Copyright &#169; 2011+ HL7 The HL7&#174; FHIR&#174; standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html." />
    <fhirVersion value="4.0.1" />
    <kind value="resource" />
    <abstract value="false" />
    <type value="Medication" />
    <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Medication" />
    <derivation value="constraint" />
    <differential>
        <element id="Medication.extension:MedicationTradeFamily">
            <path value="Medication.extension" />
            <sliceName value="MedicationTradeFamily" />
            <short value="Used to identify a Trade Family or brand associated with a Medication, specifically when the medication is defined using a dm+d Virtual Therapeutic Moiety (VTM) concept" />
            <definition value="A Trade Family or brand associated with a Medication, in particular a Virtual Therapeutic Moiety (VTM)." />
            <type>
                <code value="Extension" />
                <profile value="https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily" />
            </type>
        </element>
        <element id="Medication.code">
            <path value="Medication.code" />
            <short value="Codes that identify this medication" />
            <min value="1" />
            <mustSupport value="true" />
            <binding>
                <strength value="preferred" />
                <valueSet value="https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationCode" />
            </binding>
        </element>
        <element id="Medication.form">
            <path value="Medication.form" />
            <binding>
                <strength value="preferred" />
                <valueSet value="https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationForm" />
            </binding>
        </element>
    </differential>
</StructureDefinition>

JSON View

{
    "resourceType": "StructureDefinition",
    "id": "UKCore-Medication",
    "url": "https://fhir.hl7.org.uk/StructureDefinition/UKCore-Medication",
    "version": "2.3.0",
    "name": "UKCoreMedication",
    "title": "UK Core Medication",
    "status": "active",
    "date": "2023-12-12",
    "publisher": "HL7 UK",
    "contact":  [
        {
            "name": "HL7 UK",
            "telecom":  [
                {
                    "system": "email",
                    "value": "ukcore@hl7.org.uk",
                    "use": "work",
                    "rank": 1
                }
            ]
        }
    ],
    "description": "This profile defines the UK constraints and extensions on the International FHIR resource [Medication](https://hl7.org/fhir/R4/Medication.html).",
    "purpose": "This profile is primarily used for the identification and definition of a medication for the purposes of prescribing, dispensing, and administering a medication as well as for making statements about medication use.",
    "copyright": "Copyright © 2021+ HL7 UK Licensed under the Apache License, Version 2.0 (the \"License\"); you may not use this file except in compliance with the License. You may obtain a copy of the License at  http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. HL7® FHIR® standard Copyright © 2011+ HL7 The HL7® FHIR® standard is used under the FHIR license. You may obtain a copy of the FHIR license at  https://www.hl7.org/fhir/license.html.",
    "fhirVersion": "4.0.1",
    "kind": "resource",
    "abstract": false,
    "type": "Medication",
    "baseDefinition": "http://hl7.org/fhir/StructureDefinition/Medication",
    "derivation": "constraint",
    "differential": {
        "element":  [
            {
                "id": "Medication.extension:MedicationTradeFamily",
                "path": "Medication.extension",
                "sliceName": "MedicationTradeFamily",
                "short": "Used to identify a Trade Family or brand associated with a Medication, specifically when the medication is defined using a dm+d Virtual Therapeutic Moiety (VTM) concept",
                "definition": "A Trade Family or brand associated with a Medication, in particular a Virtual Therapeutic Moiety (VTM).",
                "type":  [
                    {
                        "code": "Extension",
                        "profile":  [
                            "https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily"
                        ]
                    }
                ]
            },
            {
                "id": "Medication.code",
                "path": "Medication.code",
                "short": "Codes that identify this medication",
                "min": 1,
                "mustSupport": true,
                "binding": {
                    "strength": "preferred",
                    "valueSet": "https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationCode"
                }
            },
            {
                "id": "Medication.form",
                "path": "Medication.form",
                "binding": {
                    "strength": "preferred",
                    "valueSet": "https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationForm"
                }
            }
        ]
    }
}

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Examples

COVID Vaccine - An example to illustrate the batch element.
Example UKCore-Medication-COVID-Vaccine

Medication Trade Family - An example to illustrate the Medication Trade Family.
Example UKCore-Extension-MedicationTradeFamily

Timolol - An example to illustrate the form element with a VTM.
Example UKCore-Medication-TimololVTM

Timoptol Eye Drops - An example to illustrate a representation of eye drops.
Example UKCore-Medication-TimoptolEyeDrops

Example Usage Scenarios

The UK Core Medication profile will likely not be used in isolation. It does not provide the context for the medication, e.g. the patient or medication related process. It will be typically used as a referenced resource within

Profile Specific Implementation Guidance:

Mandatory and Must Support Data Elements

The following elements are identified as MustSupport, and it is expected that consumers and suppliers SHALL support these as per the MustSupport Guidance.

Element	Reason
`Medication.code`	Codes that identify this medication

Extensions

More information about the extensions on the UKCore-Medication profile can be found using the links below.

Extension	Context	Link	Comment
MedicationTradeFamily	Medication.extension	https://fhir.hl7.org.uk/StructureDefinition/Extension-UKCore-MedicationTradeFamily	Used to identify a Trade Family or brand associated with a Medication, specifically when the medication is defined using a dm+d Virtual Therapeutic Moiety (VTM) concept

Bindings (differential)

More information about the bindings to UK Core ValueSets can be found below.

Context	Strength	Link
Medication.code	preferred	https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationCode
Medication.form	preferred	https://fhir.hl7.org.uk/ValueSet/UKCore-MedicationForm

Medication.extension:MedicationTradeFamily

preferred

ValueSet UKCore-MedicationTradeFamily

`code`

All medication SHOULD be represented using the NHS dm+d terminology.

The Medication.code.coding.system SHOULD be https://dmd.nhs.uk.
The Medication.code.coding.code SHOULD be the NHS dm+d concept code.
The Medication.code.coding.display SHOULD be the NHS dm+d concept description.

`manufacturer`

Name of the manufacturer by reference to the organisation.

Where possible, it is expected that the resource being referenced SHOULD conform to Profile UKCore-Organization.

`form`

Within the dm+d terminology, the Virtual Medicinal Product (VMP), Actual Medicinal Product (AMP), Virtual Medicinal Product Pack (VMPP) and Actual Medicinal Product Pack (AMPP) concepts include a coded form.

This element SHOULD be used where a medication is identified using a dm+d Virtual Therapeutic Moiety (VTM) concept and the prescriber wishes to qualify the VTM with a coded form.

Important

The NHS dm+d holds the coded '<DRUG_FORM>' attribute for a product within the Virtual Medicinal Product (VMP) concept class. It is held in the ‘VMP Form information’. Some current drug forms are not granular enough allowing for different intended uses. For example ‘capsule’ is attached to both oral capsule VMPs and vaginal capsule VMPs.

The dm+d will revisit a number of drug forms and where appropriate include details of their release characteristics and intended route. These changes will allow dm+d to more closely align with European Directorate for the Quality of Medicines & HealthCare (EDQM) dose forms and the modelling for dose forms in the International SNOMED CT data.

For more information, please see this NHS dm+d update: Updating the NHS dm+d '<DRUG_FORM>' coded attribute within the Virtual Medicinal Product concept class

`ingredient`

The actual ingredient or content by reference. Where possible, it is expected that the resource being referenced SHOULD conform to one of the following UK Core profiles: