このプロファイルは、注射薬剤処方調剤・払い出しを定義します。

本要素は、安全性のため省略せずに必須とする。

このプロファイルは、注射薬剤処方調剤・払い出しを定義します。

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.

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.

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 language.

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.

An Extension

薬剤単位の調剤結果

An Extension

このインスタンスが外部から参照されるために使われるIDである。処方箋全体としてのIDとしては使用しない。 処方箋内で同一の用法をまとめて表記されるRp番号はこのIdentifier elementの別スライスで表現する。それ以外に任意のIDを付与してもよい。 このIDは業務手順によって定められた処方オーダに対して、直接的なURL参照が適切でない場合も含めて関連付けるために使われる。この業務手順のIDは実施者によって割り当てられたものであり、リソースが更新されたりサーバからサーバに転送されたとしても固定のものとして存続する。

これは業務IDであって、リソースに対するIDではない。

処方箋内で同一用法の薬剤を慣用的にまとめて、Rpに番号をつけて剤グループとして一括指定されることがある。このスライスでは剤グループに対して割り振られたRp番号を記録する。

剤グループに複数の薬剤が含まれる場合、このグループ内の薬剤には同じRp番号が割り振られる。

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

An Extension

The purpose of this identifier.

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

Identifies the purpose for this identifier, if known .

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

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

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

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

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

ここで付番されたIDがRp番号であることを明示するためにOIDとして定義された。urn:oid:1.2.392.100495.20.3.81で固定される。

Identifier.system is always case sensitive.

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

Rp番号(剤グループ番号)。"1"など。

value は string型であり、数値はゼロサプレス、つまり、'01'でなく'1'と指定すること。

Time period during which identifier is/was valid for use.

Organization that issued/manages the identifier.

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

薬剤をオーダする単位としての処方箋に対するID。原則として調剤の基となったMedicationRequestのIDを設定する。

This is a business identifier, not a resource identifier.

The procedure that trigger the dispense.

この調剤の契機となったProcedureリソースへの参照。

A code specifying the state of the set of dispense events.

一連の調剤イベントの状態を指定するコード。

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

A coded concept specifying the state of the dispense event.

Indicates the reason why a dispense was not performed.

調剤が実行されなかった理由を示す。

A code describing why a dispense was not performed.

Indicates the type of medication dispense (for example, where the medication is expected to be consumed or administered (i.e. inpatient or outpatient)).

投薬のタイプを示す（たとえば、薬剤が消費または投与されると予想される場所（つまり、入院患者または外来患者））。　入院、外来、退院、自宅など。

The category can be used to include where the medication is expected to be consumed or other types of dispenses. Invariants can be used to bind to different value sets when profiling to bind.

A code describing where the dispensed medication is expected to be consumed or administered.

Identifies the medication that was administered. This is either a link to a resource representing the details of the medication or a simple attribute carrying a code that identifies the medication from a known list of medications.

投与された薬剤を識別する。既知の薬のリストから薬を識別するコード情報を設定する。

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

ひとつのtext要素と、複数のcoding 要素を記述できる。処方オーダ時に選択または入力し、実際に処方箋に印字される文字列を必ずtext要素に格納した上で、それをコード化した情報を1個以上のcoding 要素に記述する。

厚生労働省標準であるHOT9コード（販社指定が不要な場合にはHOT7コード）または広く流通しているYJコードを用いるか、一般名処方の場合には厚生労働省保険局一般名処方マスタのコードを使用して、Coding要素（コードsystemを識別するURI、医薬品のコード、そのコード表における医薬品の名称の3つからなる）で記述する。

なお、上記のいずれの標準的コードも付番されていない医薬品や医療材料の場合には、薬機法の下で使用されているGS1標準の識別コードであるGTIN(Global Trade Item Number)の調剤包装単位（最少包装単位、個別包装単位）14桁を使用する。

ひとつの処方薬、医療材料を複数のコード体系のコードで記述してもよく、その場合にcoding 要素を繰り返して記述する。 ただし、ひとつの処方薬を複数のコードで繰り返し記述する場合には、それらのコードが指し示す処方薬、医療材料は当然同一でなければならない。 また、処方を発行した医療機関内でのデータ利用のために、医療機関固有コード体系によるコード（ハウスコード、ローカルコード）の記述を含めてもよいが、その場合でも上述したいずれかの標準コードを同時に記述することが必要である。

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

An Extension

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

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

The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

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

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

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

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

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

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

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

Plain text narrative that identifies the resource in addition to the resource reference.

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

The person or animal or group receiving the medication.

投与を受ける患者

References SHALL be a reference to an actual FHIR resource, and SHALL be resolvable (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.

参照は、実際のFHIRリソースへの参照である必要があり、解決可能（内容に到達可能）である必要がある（アクセス制御、一時的な使用不可などを考慮に入れる）。解決は、URLから取得するか、リソースタイプによって該当する場合は、絶対参照を正規URLとして扱い、ローカルレジストリ/リポジトリで検索することによって行うことができる。

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

An Extension

A reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources.

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

The expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent.

The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources).

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

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

An identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference.

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

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

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

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

Plain text narrative that identifies the resource in addition to the resource reference.

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

Additional information that supports the medication being dispensed.

調剤される薬剤をサポートする追加情報への任意のリソースへの参照。

References SHALL be a reference to an actual FHIR resource, and SHALL be resolvable (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.

参照は、実際のFHIRリソースへの参照である必要があり、解決可能（内容に到達可能）である必要がある（アクセス制御、一時的な使用不可などを考慮に入れる）。解決は、URLから取得するか、リソースタイプによって該当する場合は、絶対参照を正規URLとして扱い、ローカルレジストリ/リポジトリで検索することによって行うことができる。

Indicates who or what performed the event. 調剤した人を示す

The principal physical location where the dispense was performed.

調剤が実施された場所を示すLocationリソースへの参照。

References SHALL be a reference to an actual FHIR resource, and SHALL be resolvable (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.

参照は、実際のFHIRリソースへの参照である必要があり、解決可能（内容に到達可能）である必要がある（アクセス制御、一時的な使用不可などを考慮に入れる）。解決は、URLから取得するか、リソースタイプによって該当する場合は、絶対参照を正規URLとして扱い、ローカルレジストリ/リポジトリで検索することによって行うことができる。

Indicates the medication order that is being dispensed against. 調剤の元になった処方オーダを表すMedicationRequestリソースへの参照。

Maps to basedOn in Event logical model.

Indicates the type of dispensing event that is performed. For example, Trial Fill, Completion of Trial, Partial Fill, Emergency Fill, Samples, etc. 実行される調剤イベントのタイプを示す。たとえば、トライアルフィル、トライアルの完了、部分フィル、緊急フィル、サンプルなどである。

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

すべてのターミノロジの使用がこの一般的なパターンに適合するわけではない。場合によっては、モデルはCodeableConceptを使用せず、コーディングを直接使用して、テキスト、コーディング、翻訳、および要素間の関係とpre-coordinationとpost-coordinationの用語関係を管理するための独自の構造を提供する必要がある。

Indicates the type of dispensing event that is performed. For example, Trial Fill, Completion of Trial, Partial Fill, Emergency Fill, Samples, etc.

調剤総量。 JP Coreでは必須 払い出される薬剤の量。計測単位を含む。

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

使用状況によって、これがどのような量であるか、したがってどのような単位を使用できるかが定義される場合がかなりある。使用状況によっては、比較演算子の値も制限される場合がある。

The amount of medication expressed as a timing amount.

タイミングとして表される投薬量。すなわち、XX日分、XX回分などの数量。

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

使用状況によって、これがどのような量であるか、したがってどのような単位を使用できるかが定義される場合がかなりある。使用状況によっては、比較演算子の値も制限される場合がある。

The time when the dispensed product was packaged and reviewed.

調剤がパッケージ化され、レビューされた日時

The time the dispensed product was provided to the patient or their representative.

必須。 患者あるいはその代理人に払い出される薬剤が提供された日時。

Identification of the facility/location where the medication was shipped to, as part of the dispense event.

調剤イベントの一環として、薬剤が出荷された行先先の施設/場所のLocationリソースへの参照。

References SHALL be a reference to an actual FHIR resource, and SHALL be resolvable (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.

参照は、実際のFHIRリソースへの参照である必要があり、解決可能（内容に到達可能）である必要がある（アクセス制御、一時的な使用不可などを考慮に入れる）。解決は、URLから取得するか、リソースタイプによって該当する場合は、絶対参照を正規URLとして扱い、ローカルレジストリ/リポジトリで検索することによって行うことができる。

Identifies the person who picked up the medication. This will usually be a patient or their caregiver, but some cases exist where it can be a healthcare professional.

薬を受け取った人を識別する。これは通常、患者またはその介護者だが、医療専門家になる場合もある。

References SHALL be a reference to an actual FHIR resource, and SHALL be resolvable (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.

参照は、実際のFHIRリソースへの参照である必要があり、解決可能（内容に到達可能）である必要がある（アクセス制御、一時的な使用不可などを考慮に入れる）。解決は、URLから取得するか、リソースタイプによって該当する場合は、絶対参照を正規URLとして扱い、ローカルレジストリ/リポジトリで検索することによって行うことができる。

Extra information about the dispense that could not be conveyed in the other attributes.

他の要素では伝達できなかった調剤に関する追加情報。

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

構造化された注釈（アノテーション）を持たないシステムの場合、作成者や時間なしで単一の注釈を簡単に伝達できる。情報を変更する可能性があるため、この要素をナラティブに含める必要がある場合がある。 注釈は、計算機処理れきる「変更」情報を伝達するために使用されるべきではない。 （ユーザの行動を強制することはほとんど不可能であるため、これはSHOULDとする）。

薬の服用方法・服用した方法、または服用すべき方法

When the dose or rate is intended to change over the entire administration period (e.g. Tapering dose prescriptions), multiple instances of dosage instructions will need to be supplied to convey the different doses/rates. The pharmacist reviews the medication order prior to dispense and updates the dosageInstruction based on the actual product being dispensed.

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

用法コメントを格納するための拡張

投与装置を格納する拡張

指示ラインを格納する拡張

ラインコメントを格納するための拡張

An Extension

どの服用指示を適応するか判断するかについての順序を示したもの

32 bitの数値。これ以上の値であれば10進数を使うこと。

もし、複数の服用法(Dosage)でsequenceの数値が同じであれば、その指示が同時に扱われることを示している。sequenceの数値が異なれば、服用指示(Dosage)の順番を意図している。

投与⽅法のテキスト表現。コードで指定できない場合、本要素で文字列として指定してもよい。

textエレメントはcodingのdisplayNameエレメントと一致することがよくある。

ターミノロジ由来のコードは必ずしも人間が使う言葉の全てのニュアンスを含めた正確な意味を捉えているわけではなく、適切なコードが見つからない場合もある。そのような場合でもtextエレメントは元々の意味のすべてを捉えるために使うことができる。

どのように薬剤を内服するかについての患者への補足指示（たとえば、「食事と一緒に」や「30分から1時間前に内服」）や薬剤についての注意書き（たとえば、「眠くなることがある」や「日光や紫外線が皮膚にあたららないようにすること」）

薬剤投与や調剤についての情報（たとえば、「腹膜内ポートに可能な限り迅速に注入」や「薬剤Xの直後に」）であり、dosage.textにも複製されるべきである。

補足指示はコード化されるように意図されているが、コードがない場合はエレメントはテキストだけで表現することができる。たとえば、「大量の水で服用する」という指示はコード化されていることもあれば、されていないことおある。

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

An Extension

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 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.

An Extension

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.

The 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.

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.

Indicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays).

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.

An Extension

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.