一個臨床病情、問題、診斷或其他事件、情況、或臨床概念，已上升到需要關注的程度。

構建resource時遵循的一系列規則的參照，在處理內容時必須理解這些規則。通常這是對IG所定義之特殊規則及其他profiles的參照。

宣告這套規則限制了內容只能被有限的交易夥伴所理解。這從本質上限制了資料的長期有用性。然而，現有的健康生態體系高度分裂，還沒有準備好以普遍可計算的方式定義、收集和交換資料。只要有可能，實作者和/或規範編寫者應該避免使用這個資料項目。通常在使用時，此URL是對IG的參照，此IG將這些特殊規則與其他profiles、value sets等一起定義為其敘述的一部分。

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

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.

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.

此病情、問題或診斷的臨床狀態

data type是CodeableConcept，因為clinicalStatus涉及到一些臨床判斷，例如：可能需要比所需的FHIR值集更多的特殊性。例如：SNOMED編碼可能允許更多的特殊性。

應填入所綁定值集中的其中一個代碼。

支持此病情、問題或診斷的臨床狀態之驗證狀態

verificationStatus不是必須的。例如：當病人在急診室出現腹痛時，不可能出現驗證狀態。資料類型是CodeableConcept，因為verificationStatus涉及到一些臨床判斷，因此可能需要比所需的FHIR值集更多的特殊性。例如：SNOMED編碼可能允許更多的特殊性。

應填入所綁定值集中的其中一個代碼。

指定此病情、問題或診斷的類別

這種分類往往具有很強的情境性，在其他情境下可能顯得區分度不高，或沒有什麼用處。

應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

臨床醫生對病情、問題或診斷嚴重程度的主觀評估

如有可能，最好用專門術語對嚴重程度進行編碼。

病情、問題或診斷的識別

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.

0..1，主要用於說明敘述性resource。

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許使用者在不知道識別碼系統的情況下利用識別碼

定義代碼中符號意義的代碼系統識別

URI可以是一個OID（urn:oid:...）或一個UUID（urn:uuid:...）；OID和UUID 必須（SHALL） 參照HL7 OID註冊中心；否則，URI應該來自HL7的FHIR定義的特殊URI列表，或者它應該參照一些明確建立的系统定義。

需要明確說明符號定義的來源

系統定義的語法之符號；符號可能是一個預先定義的代碼，也可能是代碼系統定義的語法中的表達式（如後組合配對／後組合式）。

需要參照系統中的一個特定代碼

遵循系統的規則以呈現代碼含義的表示法

需要能為不了解此系統的讀者呈現可讀的代碼含義

由專門術語系統（terminology system）所定義之代碼的參照

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，例如：SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles ）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許代碼系統中的替代編碼，以及翻譯到其他編碼系統。

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

病情、問題或診斷的識別；應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

病情、問題或診斷的識別；應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，例如：SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles ）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許代碼系統中的替代編碼，以及翻譯到其他編碼系統。

表示「absent problem」或「problems unknown」的代碼

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

輸入資料的使用者所見／所選／所說的人類可讀文字表述，和（或）其代表使用者的預期含義。

很多時候，此文字表述與其中一個代碼的顯示名稱相同。

專門術語中的代碼並不總是能捕捉人類使用的細微差別的正確意義，或者根本就沒有合適的代碼；這些情況下，文字表述被用來捕捉來源的全部意義。

此病情、問題或診斷表現出來的解剖位置

只有在Condition.code中找到的代碼未隱含此資料項目概念時才使用。如果使用案例（use-case）要求將BodySite作為一個單獨的resource來處理（例如：識別和追踪），那麼就使用標準的資料項目擴充方式來擴充bodySite。可以是一個摘要代碼，也可以是對一個非常精確位置定義的參照，或者兩者都是。

描述解剖位置的代碼。可包括側面；應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

表示與此病情、問題或診斷紀錄相關的病人或實體集合（Group resource）

實體集合（Group resource）通常用於獸醫或公共衛生的案例

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.

醫師認為此病情、問題或診斷之推估或實際發生時間或日期時間等

onsetAge通常是指病人說明病情何時開始發生的年齡

病情、問題或診斷緩解或開始緩解的日期或估計日期。因為與「緩解（remissio）」或 「解決（resolution）」相關的許多過多含義—病情、問題或診斷不會真正解決，但它們可以緩解，所以稱為「緩解 （abatement）」，

解決（resolution）和緩解（remission）之間沒有明確的區別，因為在許多情況下，兩者的區別並不明顯。當病人說明病情、問題或診斷緩解的年齡時，一般使用onsetAge。如果沒有abatement這個資料項目，就不知道狀況是否已經解決或緩解；應用程式和使用者一般應假定病情、問題或診斷仍存在。當abatementString存在時，它意味著病情、問題或診斷已緩解。

記錄病情、問題或診斷內容並對其內容負責的個人

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.

提出此病情、問題或診斷說明的人

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.

關於此Condition的附加資訊。這是一個一般的註釋／意見紀錄，用於描述病情、問題或診斷、其診斷和預後。

一個臨床病情、問題、診斷或其他事件、情況、或臨床概念，已上升到需要關注的程度。

resource的邏輯ID，在resource的URL中使用。一旦指定，這個值永遠不會改變。

一個resource使用新增操作（create operation）提交給伺服器時，此resource沒有id，它的id在resource被創建後由伺器分配/指定。

關於resource的metadata。這是由基礎建設維護的內容。內容的更改可能並不總是與resource的版本更改相關聯。

構建resource時遵循的一系列規則的參照，在處理內容時必須理解這些規則。通常這是對IG所定義之特殊規則及其他profiles的參照。

宣告這套規則限制了內容只能被有限的交易夥伴所理解。這從本質上限制了資料的長期有用性。然而，現有的健康生態體系高度分裂，還沒有準備好以普遍可計算的方式定義、收集和交換資料。只要有可能，實作者和/或規範編寫者應該避免使用這個資料項目。通常在使用時，此URL是對IG的參照，此IG將這些特殊規則與其他profiles、value sets等一起定義為其敘述的一部分。

編寫此resource的語言

提供語言是為了支援索引和可存取性（通常，文字表述轉語音等服務使用此語言標籤）。html lanuage tag適用於此敘述。resource上的語言標籤可用於指定從resource中的資料所產成的其他表述之語言。不是所有的內容都必須使用此語言。不應該假定Resource.language自動適用於敘述。如果指定語言，它也應該被指定在html中的div資料項目（關於xml:lang和html lang屬性之間的關係，見HTML5中的規則）。

人類語言；鼓勵使用CommonLanguages代碼表中的代碼，但不強制一定要使用此代碼表，你也可使用其他代碼表的代碼或單純以文字表示。

人可讀的敘述，包含resource的摘要，可用於向人表述resource的內容。敘述不需要對所有的結構化資料進行編碼，但需要包含足夠的細節使人在閱讀敘述時理解「臨床安全性」。resource定義有哪些內容應該在敘述中表示，以確保臨床安全。

內嵌（contained）的resource沒有敘述，非內嵌（contained）的resource則 建議應該（SHOULD） 有敘述。有時resource可能只有文字表述，很少或沒有額外的結構化資料（只要滿足所有minOccurs=1的資料項目）。這可能出現在舊系統的資料，當資訊以 「文字表述區塊（text blob） 」的形式被取得，或者文字表述是原始輸入或說明，而編碼資訊稍後再添加。

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.

May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

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.

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.

由執行者或其他系統指定給此病情、問題或診斷的業務用識別碼，即使此resource作更新及在伺服器之間的傳遞，此識別碼仍保持不變。

這是一個業務識別碼，不是一個resource識別碼（詳見討論）。最好的做法是該識別碼只出現在單個resource實例上，但是業務實務有可能會規定可以在多個resource實例中具有相同識別碼—甚至可能具有不同的resource型例。例如：多個 「Patient（病人）」和 「Person（個人）」resource實例可能共用同一個社會保險號碼。

允許識別各參與系統所知的此病情、問題或診斷資訊，並在各伺服器之間保持一致的方式。

此病情、問題或診斷的臨床狀態

data type是CodeableConcept，因為clinicalStatus涉及到一些臨床判斷，例如：可能需要比所需的FHIR值集更多的特殊性。例如：SNOMED編碼可能允許更多的特殊性。

應填入所綁定值集中的其中一個代碼。

支持此病情、問題或診斷的臨床狀態之驗證狀態

verificationStatus不是必須的。例如：當病人在急診室出現腹痛時，不可能出現驗證狀態。資料類型是CodeableConcept，因為verificationStatus涉及到一些臨床判斷，因此可能需要比所需的FHIR值集更多的特殊性。例如：SNOMED編碼可能允許更多的特殊性。

應填入所綁定值集中的其中一個代碼。

指定此病情、問題或診斷的類別

這種分類往往具有很強的情境性，在其他情境下可能顯得區分度不高，或沒有什麼用處。

應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

臨床醫生對病情、問題或診斷嚴重程度的主觀評估

如有可能，最好用專門術語對嚴重程度進行編碼。

病情、問題或診斷的識別

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.

0..1，主要用於說明敘述性resource。

resource中資料項目的唯一ID（用於內部參照）。這可以是任何不含空格的字串。

擴充的資料項目

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許使用者在不知道識別碼系統的情況下利用識別碼

resource中資料項目的唯一ID（用於內部參照），這可以是任何不含空格的字串。

可用於表示不屬於此資料項目基本定義的附加資訊。為了擴充的使用安全和可管理，對擴充的定義和使用有一套嚴格的管理。儘管任何實作者都可以定義一個擴充，但作為擴充定義的一部分，有一套要求 必須（SHALL） 滿足。

無論使用或定義擴充的機構或管轄區，任何應用程式、專案或標準使用擴充都不背負任何污名（stigma）。使用擴充是允許FHIR規範為每個人保留一個核心的簡易性。

定義代碼中符號意義的代碼系統識別

URI可以是一個OID（urn:oid:...）或一個UUID（urn:uuid:...）；OID和UUID 必須（SHALL） 參照HL7 OID註冊中心；否則，URI應該來自HL7的FHIR定義的特殊URI列表，或者它應該參照一些明確建立的系统定義。

需要明確說明符號定義的來源

選擇此代碼時使用的代碼系統版本；請注意，一個維護良好的代碼系統不需要版本報告，因為代碼的意義在不同系統版本中是一致的；然而，不能始終保證這點，當不能保證意義一致時， 必須（SHALL） 將版本資訊也一併作交換。

如果專門術語沒有明確定義應該使用什麼字串來識別代碼系統的版本，建議使用版本正式發布的日期（用FHIR日期格式表示）作為版本日期。

系統定義的語法之符號；符號可能是一個預先定義的代碼，也可能是代碼系統定義的語法中的表達式（如後組合配對／後組合式）。

需要參照系統中的一個特定代碼

遵循系統的規則以呈現代碼含義的表示法

需要能為不了解此系統的讀者呈現可讀的代碼含義

表明此編碼是由使用者直接選擇，例如：從可用項目（代碼或顯示名稱）的清單中選擇。

在一系列備選方案中，直接選擇的代碼是新翻譯最合適的起點；關於「直接選擇」的確切意義，存在模糊不清之處，可能需要貿易夥伴的同意，以更完整澄清此資料項目的使用及其後果。

已被確定為一個臨床安全準則—此確切的系統／代碼對(code pair)是被明確選擇的，而不是由系統根據一些規則或是程式語言處理判斷。

由專門術語系統（terminology system）所定義之代碼的參照

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，例如：SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles ）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許代碼系統中的替代編碼，以及翻譯到其他編碼系統。

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

病情、問題或診斷的識別；應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

病情、問題或診斷的識別；應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，例如：SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles ）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

允許代碼系統中的替代編碼，以及翻譯到其他編碼系統。

表示「absent problem」或「problems unknown」的代碼

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

由專門術語系統（terminology system）所定義之代碼的參照。

代碼可以在列舉清單（enumerations）或代碼清單（code lists）中非常隨意地定義，直至有非常正式的定義，如SNOMED CT—更多資訊見HL7 v3核心原則（Core Principles）。編碼的排序是未定義的因而 必須沒有（SHALL NOT） 被用來推斷意義。一般來說，最多只有一個編碼值（coding values）會被標記為UserSelected = true。

應填入所綁定值集中的其中一個代碼。

允許使用者在不知道識別碼系統的情況下利用識別碼

輸入資料的使用者所見／所選／所說的人類可讀文字表述，和（或）其代表使用者的預期含義。

很多時候，此文字表述與其中一個代碼的顯示名稱相同。

專門術語中的代碼並不總是能捕捉人類使用的細微差別的正確意義，或者根本就沒有合適的代碼；這些情況下，文字表述被用來捕捉來源的全部意義。

此病情、問題或診斷表現出來的解剖位置

只有在Condition.code中找到的代碼未隱含此資料項目概念時才使用。如果使用案例（use-case）要求將BodySite作為一個單獨的resource來處理（例如：識別和追踪），那麼就使用標準的資料項目擴充方式來擴充bodySite。可以是一個摘要代碼，也可以是對一個非常精確位置定義的參照，或者兩者都是。

描述解剖位置的代碼。可包括側面；應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

表示與此病情、問題或診斷紀錄相關的病人或實體集合（Group resource）

實體集合（Group resource）通常用於獸醫或公共衛生的案例

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

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

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.

此病情、問題或診斷記載在哪次的「就醫（Encounter）」紀錄或者與此病情、問題或診斷紀錄密切相關的「就醫（Encounter）」紀錄

通常是此病情、問題或診斷發生的就醫事件，雖然有些活動可能在就醫結束之前或之後開始，但仍與就醫事件的情境有關。這筆紀錄表明與此病情、問題或診斷紀錄相關的就醫事件（Encounter）。「新的」診斷的情況下，反映病情、問題或診斷的持續/修訂資訊可能與首次就醫所知道的病情、問題或診斷不同。

醫師認為此病情、問題或診斷之推估或實際發生時間或日期時間等

onsetAge通常是指病人說明病情何時開始發生的年齡

病情、問題或診斷緩解或開始緩解的日期或估計日期。因為與「緩解（remissio）」或 「解決（resolution）」相關的許多過多含義—病情、問題或診斷不會真正解決，但它們可以緩解，所以稱為「緩解 （abatement）」，

解決（resolution）和緩解（remission）之間沒有明確的區別，因為在許多情況下，兩者的區別並不明顯。當病人說明病情、問題或診斷緩解的年齡時，一般使用onsetAge。如果沒有abatement這個資料項目，就不知道狀況是否已經解決或緩解；應用程式和使用者一般應假定病情、問題或診斷仍存在。當abatementString存在時，它意味著病情、問題或診斷已緩解。

recordedDate表述此Condition記錄何時於系統中建立，這通常是系統產生的日期。

記錄病情、問題或診斷內容並對其內容負責的個人

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

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

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.

提出此病情、問題或診斷說明的人

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

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

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.

病情、問題或診斷的臨床分期或分級，可能包括正式的嚴重程度評估。

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

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

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.

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.

對分期的簡單摘要，如「第3期」。針對特定疾病的分期測定。

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.

描述病情、問題或診斷分期的代碼（例如：癌症分期）。應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

分期評估所依據的證據之正式記錄

分期的種類，如病理分期或臨床分期。

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.

病情、問題或診斷分期種類的代碼（如臨床或病理）；應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

作為病情、問題或診斷驗證狀態基礎的支持證據／臨床表現，如證實或反駁病情、問題或診斷的證據。

證據可以是一個簡單的編碼症狀／臨床表現的清單，或參考檢驗檢查或者正式評估，或者兩者都是。

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

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

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.

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

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.

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.

導致記錄此病情、問題或診斷的表現或症狀

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.

病情、問題或診斷的表現或症狀之代碼；應填入所綁定值集中適合的代碼，確定無適合的代碼才可以使用其他值集的代碼來表示。

其他相關資訊的連接，包括病理報告。

關於此Condition的附加資訊。這是一個一般的註釋／意見紀錄，用於描述病情、問題或診斷、其診斷和預後。