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Vocabulary Work Group Maturity Level: 5Normative Compartments: N/A

Normative Candidate Note: This page is candidate normative content for R4 in the Conformance Package. Once normative, it will lose it's Maturity Level, and breaking changes will no longer be made.

Validate that a coded value is in the set of codes allowed by a value set.

If the operation is not called at the instance level, one of the in parameters url, context or valueSet must be provided. One (and only one) of the in parameters code, coding, or codeableConcept must be provided. The operation returns a result (true / false), an error message, and the recommended display for the code.

The official URL for this operation definition is

Formal Definition (as a OperationDefinition).

URL: [base]/ValueSet/$validate-code

URL: [base]/ValueSet/[id]/$validate-code

This is an idempotent operation

In Parameters:

Value set Canonical URL. The server must know the value set (e.g. it is defined explicitly in the server's value sets, or it is defined implicitly by some code system known to the server


The context of the value set, so that the server can resolve this to a value set to validate against. The recommended format for this URI is [Structure Definition URL]#[name or path into structure definition] e.g. Other forms may be used but are not defined. This form is only usable if the terminology server also has access to the conformance registry that the server is using, but can be used to delegate the mapping from an application context to a binding at run-time


The value set is provided directly as part of the request. Servers may choose not to accept value sets in this fashion. This parameter is used when the client wants the server to expand a value set that is not stored on the server


The identifier that is used to identify a specific version of the value set to be used when validating the code. This is an arbitrary value managed by the value set author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available.


The code that is to be validated. If a code is provided, a system or a context must be provided (if a context is provided, then the server SHALL ensure that the code is not ambiguous without a system)


Система для кода, который необходимо провалидировать


Версия системы, если она была указана в данных источника


The display associated with the code, if provided. If a display is provided a code must be provided. If no display is provided, the server cannot validate the display value, but may choose to return a recommended display name using the display parameter in the outcome. Whether displays are case sensitive is code system dependent


Кодинг, который необходимо валидировать


A full codeableConcept to validate. The server returns true if one of the coding values is in the value set, and may also validate that the codings are not in conflict with each other if more than one is present


Дата, относительно которой следует выполнить эту проверку. Обычно это текущая дата (является значением по умолчанию), но при некоторых обстоятельствах системам необходимо проверить, что корректный код был использован в некоторый момент времени в прошлом. Типичный пример - ограничение выбора набором кодов, которые были доступны в то время, когда пациент проходил лечение, а не сейчас, когда эта запись редактируется. Обратите внимание, что вопрос о том, какая дата является подходящей, относится к политике реализации.


If this parameter has a value of true, the client is stating that the validation is being performed in a context where a concept designated as 'abstract' is appropriate/allowed to be used, and the server should regard abstract codes as valid. If this parameter is false, abstract codes are not considered to be valid.

Note that. 'abstract' is a property defined by many HL7 code systems that indicates that the concept is a logical grouping concept that is not intended to be used asa 'concrete' concept to in an actual patient/care/process record. This language is borrowed from Object Orienated theory where 'asbtract' objects are never instantiated. However in the general record and terminology eco-system, there are many contexts where it is appropraite to use these codes e.g. as decision making criterion, or when editing value sets themselves. This parameter allows a client to indicate to the server that it is working in such a context.


Specifies the language to be used for description when validating the display property

Out Parameters:

Истинно, если предоставленные детали концепта валидны


Error details, if result = false. If this is provided when result = true, the message carries hints and warnings


Валидное значение для отображения концепта, если система хочет показать это пользователю

Note: the correct behaviour of validation with regard to language for Coding.display items is currently undefined, and further development and testing may lead to specific requirements or recommendations in subsequent releases

Request: Simple validation of a code/system against a known value set

GET [base]/ValueSet/23/$validate-code?system=

Request: Validate a CodeableConcept against a client specified value set

POST [base]/ValueSet/$validate-code
[other headers]

  "ResourceType" : "Parameters",
  "parameter" : [
    "name" : "codeableConcept",
    "valueCodeableConcept" : {
      "coding" : {
        "system" : "",
          "code" : "1963-8",
      "display" : "test"
    "name" : "valueSet",
    "resource": {
      "resourceType" : "ValueSet",


HTTP/1.1 200 OK
[other headers]

  "resourceType" : "Parameters",
  "parameter" : [
    "name" : "result",
    "valueBoolean" : "false"
    "name" : "message",
    "valueString" : "The display \"test\" is incorrect"
    "name" : "display",
    "valueString" : "Bicarbonate [Moles/volume] in Serum"


For more information about operations, including how they are invoked, see Operations.