Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

...All modifiers SHALL be documented in the profile, in order to be usable.

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.

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.

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. All modifiers SHALL be documented in the profile, in order to be usable.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

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.

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).

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

• value @ system

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

A 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.

Describes the details of the manufacturer of the medication product. This is not intended to represent the distributor of a medication product.

Describes 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

A relationship of two Quantity values - expressed as a numerator and a denominator.

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.

Identifies 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

The 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).

• type @ $this

The 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).

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

A relationship of two Quantity values - expressed as a numerator and a denominator.

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.

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.

The 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.

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.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

The server assigns this value, and ignores what the client specifies, except in the case that the server is imposing version integrity on updates/deletes.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

This value is always populated except when the resource is first being created. The server / resource manager sets this value; what a client provides is irrelevant. This is equivalent to the HTTP Last-Modified and SHOULD have the same value on a read interaction.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

In the provenance resource, this corresponds to Provenance.entity.what[x]. The exact use of the source (and the implied Provenance.entity.role) is left to implementer discretion. Only one nominated source is allowed; for additional provenance details, a full Provenance resource should be used.

This element can be used to indicate where the current master source of a resource that has a canonical URL if the resource is no longer hosted at the canonical URL.

A list of profiles (references to StructureDefinition resources) that this resource claims to conform to. The URL is a reference to StructureDefinition.url.

It is up to the server and/or other infrastructure of policy to determine whether/how these claims are verified and/or updated over time. The list of profile URLs is a set.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

The security labels can be updated without changing the stated version of the resource. The list of security labels is a set. Uniqueness is based the system/code, and version and display are ignored.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

The tags can be updated without changing the stated version of the resource. The list of tags is a set. Uniqueness is based the system/code, and version and display are ignored.

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.

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. All modifiers SHALL be documented in the profile, in order to be usable.

The 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-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.

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.

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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

Business identifier for this medication.

The serial number could be included as an identifier.

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.

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).

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

• value @ system

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

A 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.

Describes the details of the manufacturer of the medication product. This is not intended to represent the distributor of a medication product.

Describes 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.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

The identification of the code system that defines the meaning of the symbol in the code.

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.

Need to be unambiguous about the source of the definition of the symbol.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

A 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.

A 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

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.

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.

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

A relationship of two Quantity values - expressed as a numerator and a denominator.

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.

Identifies 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.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

The 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).

• type @ $this

The 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).

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

• value @ url

A reference to a code defined by a terminology system.

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.

Allows for alternative encodings within a code system, and translations to other code systems.

A 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.

Very often the text is the same as a displayName of one of the codings.

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.

Indication 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).

A relationship of two Quantity values - expressed as a numerator and a denominator.

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.

Information that only applies to packages (not products).

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

Implementers should not set or read this element. This element is only kept as optional to allow submission of documents that would contain a value, since those documents are still readable by others. The meaning of this element is undefined in this profile.

An Extension

All modifiers SHALL be documented in the profile, in order to be usable.

The assigned lot number of a batch of the specified product.

When this specific batch of product will expire.