Operation
Definition
<?xml version="1.0" encoding="UTF-8"?>
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
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. http://hl7.org/fhir/StructureDefinition/observation-hspc-height-hspc
height#Observation.interpretation. 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)
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
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
The date for which the validation should be checked. Normally, this is the current conditions
(which is the default values) but under some circumstances, systems need to validate that
a correct code was used at some point in the past. A typical example of this would be
where code selection is constrained to the set of codes that were available when the patient
was treated, not when the record is being edited. Note that which date is appropriate
is a matter for implementation policy.
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.
Error details, if result = false. If this is provided when result = true, the message
carries hints and warnings
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
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
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
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. http://hl7.org/fhir/StructureDefinition/observation-hspc-height-hspc
height#Observation.interpretation. 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)
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
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
The date for which the validation should be checked. Normally, this is the current conditions
(which is the default values) but under some circumstances, systems need to validate that
a correct code was used at some point in the past. A typical example of this would be
where code selection is constrained to the set of codes that were available when the patient
was treated, not when the record is being edited. Note that which date is appropriate
is a matter for implementation policy.
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.
Error details, if result = false. If this is provided when result = true, the message
carries hints and warnings
<?xml version="1.0" encoding="UTF-8"?>
<OperationDefinition xmlns="http://hl7.org/fhir"> <id value="ValueSet-validate-code"/> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml"> <p class="res-header-id"> <b> Generated Narrative: OperationDefinition ValueSet-validate-code</b> </p> <a name="ValueSet-validate-code"> </a> <a name="hcValueSet-validate-code"> </a> <p> URL: [base]/ValueSet/$validate-code</p> <p> URL: [base]/ValueSet/[id]/$validate-code</p> <h3> Parameters</h3> <table class="grid"> <tr> <td> <b> Use</b> </td> <td> <b> Name</b> </td> <td> <b> Scope</b> </td> <td> <b> Cardinality</b> </td> <td> <b> Type</b> </td> <td> <b> Binding</b> </td> <td> <b> Documentation</b> </td> </tr> <tr> <td> IN</td> <td> url</td> <td> type</td> <td> 0..1</td> <td> <a href="datatypes.html#uri">uri</a> </td> <td/> <td> <div> <p> 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> context</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#uri">uri</a> </td> <td/> <td> <div> <p> 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. http://hl7.org/fhir/StructureDefinition/ob
servation-hspc-height-hspcheight#Observation.interpretation. 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> valueSet</td> <td> type</td> <td> 0..1</td> <td> <a href="valueset.html">ValueSet</a> </td> <td/> <td> <div> <p> 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> valueSetVersion</td> <td> type</td> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> code</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#code">code</a> </td> <td/> <td> <div> <p> 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)</p>
</div> </td> </tr> <tr> <td> IN</td> <td> system</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#uri">uri</a> </td> <td/> <td> <div> <p> The system for the code that is to be validated</p> </div> </td> </tr> <tr> <td> IN</td> <td> systemVersion</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> The version of the system, if one was provided in the source data. Note that this
is a different parameter to system-version</p>
</div> </td> </tr> <tr> <td> IN</td> <td> display</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> coding</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#Coding">Coding</a> </td> <td/> <td> <div> <p> A coding to validate</p> </div> </td> </tr> <tr> <td> IN</td> <td> codeableConcept</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#CodeableConcept">CodeableConcept</a> </td> <td/> <td> <div> <p> 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</p>
</div> </td> </tr> <tr> <td> IN</td> <td> date</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#dateTime">dateTime</a> </td> <td/> <td> <div> <p> The date for which the validation should be checked. Normally, this is the current
conditions (which is the default values) but under some circumstances, systems
need to validate that a correct code was used at some point in the past. A typical
example of this would be where code selection is constrained to the set of codes
that were available when the patient was treated, not when the record is being
edited. Note that which date is appropriate is a matter for implementation policy.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> abstract</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#boolean">boolean</a> </td> <td/> <td> <div> <p> If this parameter has a value of true or the parameter is omitted, 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.</p>
<p> 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
as a 'concrete' concept to in an actual patient/care/process record. This language
is borrowed from object-orientated theory where 'abstract' entities are never instantiated.
However in the general record and terminology eco-system, there are many contexts
where it is appropriate 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.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> displayLanguage</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#code">code</a> </td> <td/> <td> <div> <p> Specifies the language for display validation. Note: the display value only needs
to match 1 displayLanguage in order for the validate operation to return true.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> useSupplement</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> The supplement must be used when validating the code. Use of this parameter should
result in $validate-code behaving the same way as if the supplements were included
in the value set definition using the
<a href="https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-valueset-supplement.html">http://hl7.org/fhir/StructureDefinition/valueset-supplement</a> </p> </div> </td> </tr> <tr> <td> IN</td> <td> lenient-display-validation</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#boolean">boolean</a> </td> <td/> <td> <div> <p> When the 'lenient-display-validation' parameter is true, an invalid display string
will not cause the 'result' output parameter to be 'false'. If the 'lenient-display-validatio
n' parameter is false or absent, then an invalid display will cause the 'result'
output parameter to be 'false', i.e. the validation will fail.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> valueset-membership-only</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#boolean">boolean</a> </td> <td/> <td> <div> <p> When 'true', the server will not perform the additional validation tasks beyond
validating membership in the value set (e.g. the server won't check displays, etc.)</p>
</div> </td> </tr> <tr> <td> IN</td> <td> inferSystem</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#boolean">boolean</a> </td> <td/> <td> <div> <p> If true, the terminology server is required to infer the system from evaluation
of the value set definition. The inferSystem parameter is only to be used with
the code parameter, and not with the coding nor codeableConcept parameters.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> system-version</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> Specifies a version to use for a system, if the value set does not specify which
one to use. The format is the same as a canonical URL: [system]|[version] - e.g.
http://loinc.org|2.56. Note that this is a different parameter to systemVersion</p>
</div> </td> </tr> <tr> <td> IN</td> <td> check-system-version</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> Edge Case: Specifies a version to use for a system. If a value set specifies a
different version, an error is returned instead of the expansion. The format is
the same as a canonical URL: [system]|[version] - e.g. http://loinc.org|2.56</p>
</div> </td> </tr> <tr> <td> IN</td> <td> default-valueset-version</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> Specifies a version to use for a valueset, if the reference to the value set does
not specify which version to use. The format is the same as a canonical URL: [system]|[versio
n] - e.g. http://example.org/ValueSet/example|1.0.0. Note that this is similar to
the force-system-version parameter but applied to valuesets</p>
</div> </td> </tr> <tr> <td> IN</td> <td> check-valueset-version</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> Edge Case: Specifies a version to use for a valueset. If a reference to a value
set specifies a different version, an error is returned instead of the expansion.
The format is the same as a canonical URL: [system]|[version] - e.g. http://example.org/Value
Set/example|1.0.0. Note that this is similar to the force-system-version parameter
but applied to valuesets</p>
</div> </td> </tr> <tr> <td> IN</td> <td> force-valueset-version</td> <td/> <td> 0..*</td> <td> <a href="datatypes.html#canonical">canonical</a> </td> <td/> <td> <div> <p> Edge Case: Specifies a version to use for a valueset. This parameter overrides
any specified version in the reference to the value set (and any it depends on).
The format is the same as a canonical URL: [system]|[version] - e.g. http://example.org/Value
Set/example|1.0.0. Note that this has obvious safety issues, in that it may result
in a value set expansion giving a different list of codes that is both wrong and
unsafe, and implementers should only use this capability reluctantly. It primarily
exists to deal with situations where specifications have fallen into decay as time
passes. If the value is overridden, the version used SHALL explicitly be represented
in the expansion parameters. Note that this is similar to the force-system-version
parameter but applied to valuesets.</p>
</div> </td> </tr> <tr> <td> IN</td> <td> manifest</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#canonical">canonical</a> ( <a href="library.html" title="http://hl7.org/fhir/StructureDefinition/Library">Library</a> ) </td> <td/> <td> <div> <p> Specifies an library that provides expansion rules for the operation. The library
has an extension expansionParameters that references a contained Parameters resource
that contains additional $expand parameters. See the [CRMI specification description
of manifests]https://hl7.org/fhir/uv/crmi/STU1/StructureDefinition-crmi-manifestlibrary.html)
and
<a href="https://hl7.org/fhir/uv/crmi/STU1/artifact-terminology-service.html#expansion-rules">CRMI expansion rules</a> for a complete description of how manifest values are used to provide defaults
for expansion parameters. Parameters specified directly in an $expand operation
override behaviors specified by the manifest parameter.
</p> </div> </td> </tr> <tr> <td> IN</td> <td> tx-resource</td> <td/> <td> 0..*</td> <td> <a href="resource.html">Resource</a> </td> <td/> <td> <div> <p> One or more additional resources that are referred to from the value set provided
with the $expand or $validate-code invocation. These may be additional value sets
or code systems that the client believes will or may be necessary to perform the
operation. Resources provided in this fashion are used preferentially to those
known to the system, though servers may return an error if these resources are
already known to the server (by URL and version) but differ from that information
on the server.</p>
</div> </td> </tr> <tr> <td> OUT</td> <td> result</td> <td/> <td> 1..1</td> <td> <a href="datatypes.html#boolean">boolean</a> </td> <td/> <td> <div> <p> True if the concept details supplied are valid</p> </div> </td> </tr> <tr> <td> OUT</td> <td> message</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> Error details, if result = false. If this is provided when result = true, the message
carries hints and warnings</p>
</div> </td> </tr> <tr> <td> OUT</td> <td> display</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> A valid display for the concept if the system wishes to display this to a user</p> </div> </td> </tr> <tr> <td> OUT</td> <td> code</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#code">code</a> </td> <td/> <td> <div> <p> The code that was validated</p> </div> </td> </tr> <tr> <td> OUT</td> <td> system</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#uri">uri</a> </td> <td/> <td> <div> <p> The system for the code that was validated</p> </div> </td> </tr> <tr> <td> OUT</td> <td> version</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#string">string</a> </td> <td/> <td> <div> <p> The version of the system of the code that was validated</p> </div> </td> </tr> <tr> <td> OUT</td> <td> codeableConcept</td> <td/> <td> 0..1</td> <td> <a href="datatypes.html#CodeableConcept">CodeableConcept</a> </td> <td/> <td> <div> <p> A codeableConcept containing codings for all the validated codes</p> </div> </td> </tr> <tr> <td> OUT</td> <td> issues</td> <td/> <td> 0..1</td> <td> <a href="operationoutcome.html">OperationOutcome</a> </td> <td/> <td> <div> <p> List of itemised issues with paths constrained to simple FHIRPath. Examples are
CodeableConcept, CodeableConcept.coding[0], CodeableConcept.coding[1].display,
or Coding.display</p>
</div> </td> </tr> </table> <div> <p> Note: the correct behavior 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</p>
</div> </div> </text> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"> <valueInteger value="5"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="normative"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="vocab"/> </extension> <url value="http://hl7.org/fhir/OperationDefinition/ValueSet-validate-code"/> <version value="6.0.0-ballot4"/> <name value="ValidateCode"/> <title value="Value Set based Validation"/> <status value="active"/> <kind value="operation"/> <experimental value="false"/> <date value="2025-12-18T07:07:42+11:00"/> <publisher value="HL7 International / Terminology Infrastructure"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/Vocab"/> </telecom> </contact> <description value="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. If a code is provided, either
a system or inferSystem **SHOULD** be provided. The operation returns a result
(true / false), an error message, and the recommended display for the code. When
validating a code or a coding, then the code, system and version output parameters
**SHOULD** be populated when possible. When a validating a CodeableConcept, then
the codeableConcept output parameter **SHOULD** be populated when possible."/>
<jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <affectsState value="false"/> <code value="validate-code"/> <comment value="Note: the correct behavior 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"/>
<resource value="ValueSet"/> <system value="false"/> <type value="true"/> <instance value="true"/> <parameter> <name value="url"/> <use value="in"/> <scope value="type"/> <min value="0"/> <max value="1"/> <documentation value="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"/>
<type value="uri"/> </parameter> <parameter> <name value="context"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="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. http://hl7.org/fhir/StructureDefinition/ob
servation-hspc-height-hspcheight#Observation.interpretation. 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"/>
<type value="uri"/> </parameter> <parameter> <name value="valueSet"/> <use value="in"/> <scope value="type"/> <min value="0"/> <max value="1"/> <documentation value="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"/>
<type value="ValueSet"/> </parameter> <parameter> <name value="valueSetVersion"/> <use value="in"/> <scope value="type"/> <min value="0"/> <max value="1"/> <documentation value="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"/>
<type value="string"/> </parameter> <parameter> <name value="code"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="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)"/>
<type value="code"/> </parameter> <parameter> <name value="system"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="The system for the code that is to be validated"/> <type value="uri"/> </parameter> <parameter> <name value="systemVersion"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="The version of the system, if one was provided in the source data. Note that this
is a different parameter to system-version"/>
<type value="string"/> </parameter> <parameter> <name value="display"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="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"/>
<type value="string"/> </parameter> <parameter> <name value="coding"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="A coding to validate"/> <type value="Coding"/> </parameter> <parameter> <name value="codeableConcept"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="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"/>
<type value="CodeableConcept"/> </parameter> <parameter> <name value="date"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="The date for which the validation should be checked. Normally, this is the current
conditions (which is the default values) but under some circumstances, systems
need to validate that a correct code was used at some point in the past. A typical
example of this would be where code selection is constrained to the set of codes
that were available when the patient was treated, not when the record is being
edited. Note that which date is appropriate is a matter for implementation policy."/>
<type value="dateTime"/> </parameter> <parameter> <name value="abstract"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="If this parameter has a value of true or the parameter is omitted, 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
as a 'concrete' concept to in an actual patient/care/process record. This language
is borrowed from object-orientated theory where 'abstract' entities are never instantiated.
However in the general record and terminology eco-system, there are many contexts
where it is appropriate 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."/>
<type value="boolean"/> </parameter> <parameter> <name value="displayLanguage"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Specifies the language for display validation. Note: the display value only needs
to match 1 displayLanguage in order for the validate operation to return true."/>
<type value="code"/> </parameter> <parameter> <name value="useSupplement"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="The supplement must be used when validating the code. Use of this parameter should
result in $validate-code behaving the same way as if the supplements were included
in the value set definition using the [http://hl7.org/fhir/StructureDefinition/valueset-suppl
ement](https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-valueset-supplement.h
tml)"/>
<type value="canonical"/> </parameter> <parameter> <name value="lenient-display-validation"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="When the 'lenient-display-validation' parameter is true, an invalid display string
will not cause the 'result' output parameter to be 'false'. If the 'lenient-display-validatio
n' parameter is false or absent, then an invalid display will cause the 'result'
output parameter to be 'false', i.e. the validation will fail."/>
<type value="boolean"/> </parameter> <parameter> <name value="valueset-membership-only"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="When 'true', the server will not perform the additional validation tasks beyond
validating membership in the value set (e.g. the server won't check displays, etc.)"/>
<type value="boolean"/> </parameter> <parameter> <name value="inferSystem"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="If true, the terminology server is required to infer the system from evaluation
of the value set definition. The inferSystem parameter is only to be used with
the code parameter, and not with the coding nor codeableConcept parameters."/>
<type value="boolean"/> </parameter> <parameter> <name value="system-version"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Specifies a version to use for a system, if the value set does not specify which
one to use. The format is the same as a canonical URL: [system]|[version] - e.g.
http://loinc.org|2.56. Note that this is a different parameter to systemVersion"/>
<type value="canonical"/> </parameter> <parameter> <name value="check-system-version"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Edge Case: Specifies a version to use for a system. If a value set specifies a
different version, an error is returned instead of the expansion. The format is
the same as a canonical URL: [system]|[version] - e.g. http://loinc.org|2.56"/>
<type value="canonical"/> </parameter> <parameter> <name value="default-valueset-version"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Specifies a version to use for a valueset, if the reference to the value set does
not specify which version to use. The format is the same as a canonical URL: [system]|[versio
n] - e.g. http://example.org/ValueSet/example|1.0.0. Note that this is similar to
the force-system-version parameter but applied to valuesets"/>
<type value="canonical"/> </parameter> <parameter> <name value="check-valueset-version"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Edge Case: Specifies a version to use for a valueset. If a reference to a value
set specifies a different version, an error is returned instead of the expansion.
The format is the same as a canonical URL: [system]|[version] - e.g. http://example.org/Value
Set/example|1.0.0. Note that this is similar to the force-system-version parameter
but applied to valuesets"/>
<type value="canonical"/> </parameter> <parameter> <name value="force-valueset-version"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="Edge Case: Specifies a version to use for a valueset. This parameter overrides
any specified version in the reference to the value set (and any it depends on).
The format is the same as a canonical URL: [system]|[version] - e.g. http://example.org/Value
Set/example|1.0.0. Note that this has obvious safety issues, in that it may result
in a value set expansion giving a different list of codes that is both wrong and
unsafe, and implementers should only use this capability reluctantly. It primarily
exists to deal with situations where specifications have fallen into decay as time
passes. If the value is overridden, the version used SHALL explicitly be represented
in the expansion parameters. Note that this is similar to the force-system-version
parameter but applied to valuesets."/>
<type value="canonical"/> </parameter> <parameter> <name value="manifest"/> <use value="in"/> <min value="0"/> <max value="1"/> <documentation value="Specifies an library that provides expansion rules for the operation. The library
has an extension expansionParameters that references a contained Parameters resource
that contains additional $expand parameters. See the [CRMI specification description
of manifests]https://hl7.org/fhir/uv/crmi/STU1/StructureDefinition-crmi-manifestlibrary.html)
and [CRMI expansion rules](https://hl7.org/fhir/uv/crmi/STU1/artifact-terminology-service.htm
l#expansion-rules) for a complete description of how manifest values are used to
provide defaults for expansion parameters. Parameters specified directly in an
$expand operation override behaviors specified by the manifest parameter."/>
<type value="canonical"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/Library"/> </parameter> <parameter> <name value="tx-resource"/> <use value="in"/> <min value="0"/> <max value="*"/> <documentation value="One or more additional resources that are referred to from the value set provided
with the $expand or $validate-code invocation. These may be additional value sets
or code systems that the client believes will or may be necessary to perform the
operation. Resources provided in this fashion are used preferentially to those
known to the system, though servers may return an error if these resources are
already known to the server (by URL and version) but differ from that information
on the server."/>
<type value="Resource"/> </parameter> <parameter> <name value="result"/> <use value="out"/> <min value="1"/> <max value="1"/> <documentation value="True if the concept details supplied are valid"/> <type value="boolean"/> </parameter> <parameter> <name value="message"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="Error details, if result = false. If this is provided when result = true, the message
carries hints and warnings"/>
<type value="string"/> </parameter> <parameter> <name value="display"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="A valid display for the concept if the system wishes to display this to a user"/> <type value="string"/> </parameter> <parameter> <name value="code"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="The code that was validated"/> <type value="code"/> </parameter> <parameter> <name value="system"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="The system for the code that was validated"/> <type value="uri"/> </parameter> <parameter> <name value="version"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="The version of the system of the code that was validated"/> <type value="string"/> </parameter> <parameter> <name value="codeableConcept"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="A codeableConcept containing codings for all the validated codes"/> <type value="CodeableConcept"/> </parameter> <parameter> <name value="issues"/> <use value="out"/> <min value="0"/> <max value="1"/> <documentation value="List of itemised issues with paths constrained to simple FHIRPath. Examples are
CodeableConcept, CodeableConcept.coding[0], CodeableConcept.coding[1].display,
or Coding.display"/>
<type value="OperationOutcome"/> </parameter>
</
OperationDefinition
>
Usage
note:
every
effort
has
been
made
to
ensure
that
the
examples
are
correct
and
useful,
but
they
are
not
a
normative
part
of
the
specification.