Medication (CA-Core)
Additional information on this profile (including the JSON & XML structure and detailed element descriptions) can be found at package/structuredefinition-medication-ca-core.json
This profile imposes the CA Baseline (v1.1.7) Medication Profile.
Profile
| MedicationCACore (Medication) | I | Medication | Element idMedication Definition of a Medication DefinitionThis 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.
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| id | Σ | 0..1 | string | There are no (further) constraints on this element Element idMedication.id Logical id of this artifact DefinitionThe logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes. The only time that a resource does not have an id is when it is being submitted to the server using a create operation. |
| meta | Σ | 0..1 | Meta | There are no (further) constraints on this element Element idMedication.meta Metadata about the resource 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.
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| implicitRules | Σ ?! | 0..1 | uri | There are no (further) constraints on this element Element idMedication.implicitRules A set of rules under which this content was created 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. 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.
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| language | 0..1 | codeBinding | There are no (further) constraints on this element Element idMedication.language Language of the resource content DefinitionThe base language in which the resource is written. 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). A human language.
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| text | 0..1 | Narrative | There are no (further) constraints on this element Element idMedication.text Text summary of the resource, for human interpretation Alternate namesnarrative, html, xhtml, display 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. 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.
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| contained | 0..* | Resource | There are no (further) constraints on this element Element idMedication.contained Contained, inline Resources Alternate namesinline resources, anonymous resources, contained resources 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. 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.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| modifierExtension | ?! I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.modifierExtension Extensions that cannot be ignored Alternate namesextensions, user content 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). 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| identifier | Σ | 0..* | Identifier | There are no (further) constraints on this element Element idMedication.identifier Business identifier for this medication DefinitionBusiness identifier for this medication. The serial number could be included as an identifier.
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| code | Σ | 1..1 | CodeableConceptBinding | Element idMedication.code Codes that identify this medication DefinitionA 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. The preferred binding on this element may continue to change as pCHDCF undergoes further refinement. The point-in-time materials provided by pCHDCF to create the profiles in this release recommends the use of the PrescriptionMedicinalProduct valueSet which uses a codeSystem canonical url that is heavily implemented in production but is not the preferred codeSystem (HC-CCDD) expressed in THO. This will be addressed through pCHDCF and is expected to resolve any current differences in other pan-Canadian specifications (e.g., PS-CA) that currently utilize the HC-CCDD valueSet. A coded concept that defines the type of a medication.
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| id | 0..1 | string | There are no (further) constraints on this element Element idMedication.code.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.code.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| coding | Σ | 1..* | Coding | There are no (further) constraints on this element Element idMedication.code.coding Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.
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| id | 0..1 | string | There are no (further) constraints on this element Element idMedication.code.coding.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.code.coding.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| system | Σ | 1..1 | uri | Element idMedication.code.coding.system Identity of the terminology system DefinitionThe identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.
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| version | Σ | 0..1 | string | There are no (further) constraints on this element Element idMedication.code.coding.version Version of the system - if relevant DefinitionThe version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.
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| code | Σ | 1..1 | code | Element idMedication.code.coding.code Symbol in syntax defined by the system DefinitionA symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. Note that FHIR strings SHALL NOT exceed 1MB in size
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| display | Σ | 0..1 | string | Element idMedication.code.coding.display Representation defined by the system DefinitionA representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Note that FHIR strings SHALL NOT exceed 1MB in size
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| id | 0..1 | string | There are no (further) constraints on this element Element idMedication.code.coding.display.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.code.coding.display.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| translation | I | 0..* | Extension(Complex) | Element idMedication.code.coding.display.extension:translation Language Translation (Localization) Alternate namesextensions, user content DefinitionLanguage translation from base language of resource to another language. 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. Extension(Complex) Extension URLhttp://hl7.org/fhir/StructureDefinition/translation Constraints
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| value | 0..1 | System.String | There are no (further) constraints on this element Element idMedication.code.coding.display.value Primitive value for string DefinitionPrimitive value for string System.String Maximum string length1048576 | |
| userSelected | Σ | 0..1 | boolean | There are no (further) constraints on this element Element idMedication.code.coding.userSelected If this coding was chosen directly by the user DefinitionIndicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.
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| text | Σ | 0..1 | string | Element idMedication.code.text Plain text representation of the concept DefinitionA human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings.
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| status | Σ ?! | 0..1 | codeBinding | There are no (further) constraints on this element Element idMedication.status active | inactive | entered-in-error DefinitionA code to indicate if the medication is in active use. 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. A coded concept defining if the medication is in active use.
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| manufacturer | Σ I | 0..1 | Reference(Organization) | There are no (further) constraints on this element Element idMedication.manufacturer Manufacturer of the item DefinitionDescribes the details of the manufacturer of the medication product. This is not intended to represent the distributor of a medication product. 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.
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| form | 0..1 | CodeableConcept | There are no (further) constraints on this element Element idMedication.form powder | tablets | capsule + DefinitionDescribes the form of the item. Powder; tablets; capsule. 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. A coded concept defining the form of a medication.
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| amount | Σ I | 0..1 | Ratio | There are no (further) constraints on this element Element idMedication.amount Amount of drug in package DefinitionSpecific 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.). 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.
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| ingredient | 0..* | BackboneElement | There are no (further) constraints on this element Element idMedication.ingredient Active or inactive ingredient DefinitionIdentifies a particular constituent of interest in the product. 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.
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| id | 0..1 | string | There are no (further) constraints on this element Element idMedication.ingredient.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.ingredient.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.ingredient.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers 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). 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. 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.
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| item[x] | 1..1 | There are no (further) constraints on this element Element idMedication.ingredient.item[x] The actual ingredient or content DefinitionThe actual ingredient - either a substance (simple ingredient) or another medication of a medication. The ingredient may reference a substance (for example, amoxicillin) or another medication (for example in the case of a compounded product, Glaxal Base).
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| itemCodeableConcept | CodeableConcept | There are no (further) constraints on this element Data type | ||
| itemReference | Reference(Substance | Medication) | There are no (further) constraints on this element Data type | ||
| isActive | 0..1 | boolean | There are no (further) constraints on this element Element idMedication.ingredient.isActive Active ingredient indicator DefinitionIndication of whether this ingredient affects the therapeutic action of the drug. 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).
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| strength | I | 0..1 | Ratio | There are no (further) constraints on this element Element idMedication.ingredient.strength Quantity of ingredient present DefinitionSpecifies 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. 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.
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| batch | 0..1 | BackboneElement | There are no (further) constraints on this element Element idMedication.batch Details about packaged medications DefinitionInformation that only applies to packages (not products).
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| id | 0..1 | string | There are no (further) constraints on this element Element idMedication.batch.id Unique id for inter-element referencing DefinitionUnique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.
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| extension | I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.batch.extension Additional content defined by implementations Alternate namesextensions, user content 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. 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. Unordered, Open, by url(Value) Extensions are always sliced by (at least) url Constraints
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| modifierExtension | Σ ?! I | 0..* | Extension | There are no (further) constraints on this element Element idMedication.batch.modifierExtension Extensions that cannot be ignored even if unrecognized Alternate namesextensions, user content, modifiers 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). 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. 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.
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| lotNumber | 0..1 | string | There are no (further) constraints on this element Element idMedication.batch.lotNumber Identifier assigned to batch DefinitionThe assigned lot number of a batch of the specified product. Note that FHIR strings SHALL NOT exceed 1MB in size
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| expirationDate | 0..1 | dateTime | There are no (further) constraints on this element Element idMedication.batch.expirationDate When batch will expire DefinitionWhen this specific batch of product will expire.
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Obligations
Obligations are a new (and evolving) mechanism in FHIR to provide a consistent and machine processable way for profiles to define their expectations for system behaviors.
This profile utilizes the Obligation Extension to convey these expectations.
Note: Simplifier is working on rendering of Obligations. In the meantime the Obligations applied on the profile (see JSON & XML structure) have been rendered as a table below for easier viewing.
| Obligation Code | Actor | Elements |
|---|---|---|
| SHALL:able-to-populate | Server Actor (CA Core) | code, code.coding, code.coding.system, code.coding.code, code.coding.display, code.text |
| SHALL:handle | Client Actor (CA Core) | code, code.coding, code.coding.system, code.coding.code, code.coding.display, code.text |
Terminology
This version of the guide is based on the early content development of the pan-Canadian Health Data Content Framework (pCHDCF) and CACDI. The pCHDCF is beginning to introduce recommended terminology for select concepts. Implementers should be aware that the identification of preferred terminology continues to progress and that some coded elements may have terminology recommendations added in future releases.
Note: Implementers should be aware of the limitations in some terminology referenced in this guide that is not fully expressed as an enumerated FHIR ValueSet or resolvable FHIR CodeSystems. Readers should refer to the Known Issues & Future Development page.
Bindings
Primary bindings are expressed in the rendering of the profile above (as well as can be found in the JSON/XML file).
Additional terminology bindings are also expressed in this profile to surface Alternate Value Sets expressed in the pCHDCF Data Content Standard.
Additional terminology bindings can be viewed by scrolling over the element in the table above.
Mappings to pCHDCF-CACDI Logical Data Model
| Mapping | CACDI Logical Data Model Element | FHIR Profile Element | Comment |
|---|---|---|---|
| pCHDCF-CACDI | Drug | Medication | |
| Medication.code | |||
| Medication.code.coding | |||
| pCHDCF-CACDI | Drug Code System URI | Medication.code.coding.system | |
| pCHDCF-CACDI | Drug Code | Medication.code.coding.code | |
| pCHDCF-CACDI; pCHDCF-CACDI | Drug English Description; Drug French Description | Medication.code.coding.display | Display may be populated with english or french description depending on the context of the primary language for the user at the time this code is selected. Secondary or translated coding.display values should be conveyed using the translation extension; Display may be populated with english or french description depending on the context of the primary language for the user at the time this code is selected. Secondary or translated coding.display values should be conveyed using the translation extension |
| Medication.code.coding.display.extension:translation | |||
| pCHDCF-CACDI | Medication Entered Description | Medication.code.text |
Additional Mapping Notes
Medication.code.coding.display - Display may be populated with english or french description depending on the context of the primary language for the user at the time this code is selected. Secondary or translated coding.display values should be conveyed using the translation extension