Shareable
CodeSystem
ShareableCodeSystem
<?xml version="1.0" encoding="UTF-8"?>
Enforces the minimum information set for the value set metadata required by HL7 and other
organizations that share and publish value sets
The CodeSystem resource is used to declare the existence of and describe a code system
or code system supplement and its key properties, and optionally define a part or all
of its content.
Name should be usable as an identifier for the module by machine processing applications
such as code generation
If the resource is contained in another resource, it SHALL be referred to from elsewhere
in the resource or SHALL refer to the containing resource
contained.where(((id.exists() and ('#'+id in (%resource.descendants().reference | %resource.descenda
nts().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))))
or descendants().where(reference = '#').exists() or descendants().where(as(canonical)
= '#').exists() or descendants().where(as(uri) = '#').exists()).not()).trace('unmatched',
id).empty()
not(exists(for $contained in f:contained return $contained[not(exists(parent::*/descendant::f:refere
nce/@value=concat('#', $contained/*/f:id/@value)) or exists(descendant::f:reference[@value='#']))]))
If a resource is contained in another resource, it SHALL NOT have a meta.versionId or
a meta.lastUpdated
When a resource has no narrative, only systems that fully understand the data can display
the resource to a human safely. Including a human readable representation in the resource
makes for a much more robust eco-system and cheaper handling of resources by intermediary
systems. Some ecosystems restrict distribution of resources to only those systems that
do fully understand the resources, and as a consequence implementers may believe that
the narrative is superfluous. However experience shows that such eco-systems often open
up to new participants over time.
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.
This element is labeled as a modifier because the implicit rules may provide additional
knowledge about the resource that modifies it's meaning or interpretation
Language is provided to support indexing and accessibility (typically, services such as
text to speech use the language tag). The html language tag in the narrative applies
to the narrative. The language tag on the resource may be used to specify the language
of other presentations generated from the data in the resource. Not all the content has
to be in the base language. The Resource.language should not be assumed to apply to the
narrative automatically. If a language is specified, it should it also be specified on
the div element in the html (see rules in HTML5 for information about the relationship
between xml:lang and the html lang attribute).
A human-readable narrative that contains a summary of the resource and can be used to
represent the content of the resource to a human. The narrative need not encode all the
structured data, but is required to contain sufficient detail to make it "clinically
safe" for a human to just read the narrative. Resource definitions may define what
content should be represented in the narrative to ensure clinical safety.
Contained resources do not have narrative. Resources that are not contained SHOULD have
a narrative. In some cases, a resource may only have text with little or no additional
discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary
for data from legacy systems where information is captured as a "text blob"
or where text is additionally entered raw or narrated and encoded information is added
later.
These resources do not have an independent existence apart from the resource that contains
them - they cannot be identified independently, and nor can they have their own independent
transaction scope.
This should never be done when the content can be identified properly, as once identification
is lost, it is extremely difficult (and context dependent) to restore it again. Contained
resources may have profiles and tags In their meta elements, but SHALL NOT have security
labels.
Containing new R4B resources within R4 resources may cause interoperability issues if
instances are shared with R4 systems
($this is Citation or $this is Evidence or $this is EvidenceReport or $this is EvidenceVariable
or $this is MedicinalProductDefinition or $this is PackagedProductDefinition or $this
is AdministrableProductDefinition or $this is Ingredient or $this is ClinicalUseDefinition
or $this is RegulatedAuthorization or $this is SubstanceDefinition or $this is SubscriptionStatus
or $this is SubscriptionTopic) implies (%resource is Citation or %resource is Evidence
or %resource is EvidenceReport or %resource is EvidenceVariable or %resource is MedicinalProductDefi
nition or %resource is PackagedProductDefinition or %resource is AdministrableProductDefinition
or %resource is Ingredient or %resource is ClinicalUseDefinition or %resource is RegulatedAuthorizat
ion or %resource is SubstanceDefinition or %resource is SubscriptionStatus or %resource
is SubscriptionTopic)
not(f:Citation|f:Evidence|f:EvidenceReport|f:EvidenceVariable|f:MedicinalProductDefinition|f:Package
dProductDefinition|f:AdministrableProductDefinition|f:Ingredient|f:ClinicalUseDefinition|f:RegulatedA
uthorization|f:SubstanceDefinition|f:SubscriptionStatus|f:SubscriptionTopic) or not(parent::f:Citatio
n|parent::f:Evidence|parent::f:EvidenceReport|parent::f:EvidenceVariable|parent::f:MedicinalProductDe
finition|parent::f:PackagedProductDefinition|parent::f:AdministrableProductDefinition|parent::f:Ingre
dient|parent::f:ClinicalUseDefinition|parent::f:RegulatedAuthorization|parent::f:SubstanceDefinition|
f:SubscriptionStatus|f:SubscriptionTopic)
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the resource
that contains them
An absolute URI that is used to identify this code system when it is referenced in a specification,
model, design or an instance; also called its canonical identifier. This SHOULD be globally
unique and SHOULD be a literal address at which at which an authoritative instance of
this code system is (or will be) published. This URL can be the target of a canonical
reference. It SHALL remain the same when the code system is stored on different servers.
This is used in [Coding](datatypes.html#Coding).system.
Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple instances
may share the same URL if they have a distinct version.
The determination of when to create a new version of a resource (same url, new version)
vs. defining a new artifact is up to the author. Considerations for making this decision
are found in [Technical and Business Versions](resource.html#versions).
In some cases, the resource can no longer be found at the stated url, but the url itself
cannot change. Implementations can use the [meta.source](resource.html#meta) element to
indicate where the current master source of the resource can be found.
A formal identifier that is used to identify this code system when it is represented in
other formats, or referenced in a specification, model, design or an instance.
Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier)
data type, and can then identify this code system outside of FHIR, where it is not possible
to use the logical URI. Note that HL7 defines at least three identifiers for many of
its code systems - the FHIR canonical URL, the OID and the V2 Table 0396 mnemonic code.
Allows externally provided and/or usable business identifiers to be easily associated
with the module.
The identifier that is used to identify this version of the code system when it is referenced
in a specification, model, design or instance. This is an arbitrary value managed by the
code system 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. There is also no expectation
that versions can be placed in a lexicographical sequence. This is used in [Coding](datatypes.html#C
oding).version.
There may be different code system instances that have the same identifier but different
versions. The version can be appended to the url in a reference to allow a reference
to a particular business version of the code system with the format [url]|[version].
A natural language name identifying the code system. This name should be usable as an
identifier for the module by machine processing applications such as code generation.
The name is not expected to be globally unique. The name should be a simple alphanumeric
type name to ensure that it is machine-processing friendly.
This name does not need to be machine-processing friendly and may contain punctuation,
white-space, etc.
This is labeled as "Is Modifier" because applications should not use a retired
{{title}} without due consideration
A Boolean value to indicate that this code system is authored for testing purposes (or
education/evaluation/marketing) and is not intended to be used for genuine usage.
Enables experimental content to be developed following the same lifecycle that would be
used for a production-level code system.
The date (and optionally time) when the code system was published. The date must change
when the business version changes and it must change if the status code changes. In addition,
it should change when the substantive content of the code system changes.
Note that this is not the same as the resource last-modified-date, since the resource
may be a secondary representation of the code system. Additional specific dates may be
added as extensions or be found by consulting Provenances associated with past versions
of the resource.
Usually an organization but may be an individual. The publisher (or steward) of the code
system is the organization or individual primarily responsible for the maintenance and
upkeep of the code system. This is not necessarily the same individual or organization
that developed and initially authored the content. The publisher is the primary point
of contact for questions or issues with the code system. This item SHOULD be populated
unless the information is available from context.
Helps establish the "authority/credibility" of the code system. May also allow
for contact.
This description can be used to capture details such as why the code system was built,
comments about misuse, instructions for clinical use and interpretation, literature references,
examples from the paper world, etc. It is not a rendering of the code system as conveyed
in the 'text' field of the resource itself. This item SHOULD be populated unless the information
is available from context (e.g. the language of the code system is presumed to be the
predominant language in the place the code system was created).
The content was developed with a focus and intent of supporting the contexts that are
listed. These contexts may be general categories (gender, age, ...) or may be references
to specific programs (insurance plans, studies, ...) and may be used to assist with indexing
and searching for appropriate code system instances.
When multiple useContexts are specified, there is no expectation that all or any of the
contexts apply.
It may be possible for the code system to be used in jurisdictions other than those for
which it was originally designed or intended.
This element does not describe the usage of the code system. Instead, it provides traceability
of ''why'' the resource is either needed or ''why'' it is defined as it is. This may
be used to point to source materials or specifications that drove the structure of this
code system.
A copyright statement relating to the code system and/or its contents. Copyright statements
are generally legal restrictions on the use and publishing of the code system.
... Sometimes, the copyright differs between the code system and the codes that are included.
The copyright statement should clearly differentiate between these when required.
Consumers must be able to determine any legal restrictions on the use of the code system
and/or its content.
If code comparison is case sensitive when codes within this system are compared to each
other.
If this value is missing, then it is not specified whether a code system is case sensitive
or not. When the rule is not known, Postel's law should be followed: produce codes with
the correct case, and accept codes in any case. This element is primarily provided to
support validation software.
The definition of the value set SHALL include all codes from this code system and only
codes from this code system, and it SHALL be immutable.
Note that other representations might have a different hierarchy or none at all, and represent
the information using properties.
Note that the code system resource does not define what the compositional grammar is,
only whether or not there is one.
This flag is used to signify that the code system does not commit to concept permanence
across versions. If true, a version must be specified when referencing this code system.
Best practice is that code systems do not redefine concepts, or that if concepts are redefined,
a new code system definition is created. But this is not always possible, so some code
systems may be defined as 'versionNeeded'.
Most code systems occasionally refine the displays defined for concepts between versions.
Contexts in which the concept display values are validated may require that the version
be specified for some code systems irrespective of the value of this property.
The extent of the content of the code system (the concepts and codes it defines) are represented
in this resource instance.
The extent of the content of the code system (the concepts and codes it defines) are represented
in a code system resource.
The canonical URL of the code system that this code system supplement is adding designations
and properties to.
The total number of concepts defined by the code system. Where the code system has a compositional
grammar, the basis of this count is defined by the system steward.
The count of concepts defined in this resource cannot be more than this value but may
be less for several reasons - see the content element.
A filter that can be used in a value set compose statement when selecting concepts using
a filter.
Note that filters defined in code systems usually require custom code on the part of any
terminology engine that will make them available for use in value set filters. For this
reason, they are generally only seen in high value published terminologies.
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element
that contains them
The code that identifies this filter when it is used as a filter in [ValueSet](valueset.html#).compo
se.include.filter.
A property defines an additional slot through which additional information can be provided
about a concept.
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element
that contains them
A code that is used to identify the property. The code is used internally (in CodeSystem.concept.pro
perty.code) and also externally, such as in property filters.
Reference to the formal meaning of the property. One possible source of meaning is the
[Concept Properties](codesystem-concept-properties.html) code system.
The type of the property value. Properties of type "code" contain a code defined
by the code system (e.g. a reference to another defined concept).
Concepts that are in the code system. The concept definitions are inherently hierarchical,
but the definitions must be consulted to determine what the meanings of the hierarchical
relationships are.
If this is empty, it means that the code system resource does not represent the content
of the code system.
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element
that contains them
A human readable string that is the recommended default way to present this concept to
a user.
The formal definition of the concept. The code system resource does not make formal definitions
required, because of the prevalence of legacy systems. However, they are highly recommended,
as without them there is no formal meaning associated with the concept.
Additional representations for the concept - other languages, aliases, specialized purposes,
used for particular purposes, etc.
Concepts have both a ```display``` and an array of ```designation```. The display is equivalent
to a special designation with an implied ```designation.use``` of "primary code"
and a language equal to the [Resource Language](resource.html#language).
Many concept definition systems support multiple representations, in multiple languages,
and for multiple purposes.
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element
that contains them
If no use is provided, the designation can be assumed to be suitable for general display
to a human user.
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](extensibility.ht
ml#modifierExtension).
Modifier extensions are expected to modify the meaning or interpretation of the element
that contains them
Defines children of a concept to produce a hierarchy of concepts. The nature of the relationships
is variable (is-a/contains/categorizes) - see hierarchyMeaning.
<?xml version="1.0" encoding="UTF-8"?>
<StructureDefinition xmlns="http://hl7.org/fhir"> <id value="shareablecodesystem"/> <text> <status value="generated"/> <div xmlns="http://www.w3.org/1999/xhtml">to do</div> </text> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"> <valueInteger value="3"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"> <valueCode value="vocab"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <url value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/> <identifier> <system value="urn:ietf:rfc:3986"/> <value value="urn:oid:2.16.840.1.113883.4.642.5.1135"/> </identifier> <version value="5.0.0-draft-final"/> <name value="ShareableCodeSystem"/> <title value="Shareable CodeSystem"/> <status value="draft"/> <experimental value="false"/> <date value="2020-12-28T16:55:11+11:00"/> <publisher value="HL7"/> <description value="Enforces the minimum information set for the code system metadata required by HL7
and other organizations that share and publish code systems"/>
<fhirVersion value="5.0.0-draft-final"/> <mapping> <identity value="rim"/> <uri value="http://hl7.org/v3"/> <name value="RIM Mapping"/> </mapping> <mapping> <identity value="workflow"/> <uri value="http://hl7.org/fhir/workflow"/> <name value="Workflow Pattern"/> </mapping> <mapping> <identity value="w5"/> <uri value="http://hl7.org/fhir/fivews"/> <name value="FiveWs Pattern Mapping"/> </mapping> <mapping> <identity value="objimpl"/> <uri value="http://hl7.org/fhir/object-implementation"/> <name value="Object Implementation Information"/> </mapping> <kind value="resource"/> <abstract value="false"/> <type value="CodeSystem"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> <derivation value="constraint"/> <snapshot> <element id="CodeSystem"> <path value="CodeSystem"/> <short value="Declares the existence of and describes a code system or code system supplement"/> <definition value="The CodeSystem resource is used to declare the existence of and describe a code
system or code system supplement and its key properties, and optionally define
a part or all of its content."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem"/> <min value="0"/> <max value="*"/> </base> <constraint> <key value="cnl-0"/> <severity value="warning"/> <human value="Name should be usable as an identifier for the module by machine processing applications
such as code generation"/>
<expression value="name.exists() implies name.matches('^[A-Z]([A-Za-z0-9_]){1,254}$')"/> <source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="csd-1"/> <severity value="error"/> <human value="Within a code system definition, all the codes SHALL be unique"/> <expression value="concept.exists() implies concept.code.combine(%resource.concept.descendants().concept.code).i
sDistinct()"/>
<source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="csd-2"/> <severity value="warning"/> <human value="If there is an explicit hierarchy, a hierarchyMeaning should be provided"/> <expression value="concept.concept.exists() implies hierarchyMeaning.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="csd-3"/> <severity value="warning"/> <human value="If there is an implicit hierarchy, a hierarchyMeaning should be provided"/> <expression value="concept.where(property.code = 'parent' or property.code = 'child').exists() implies
hierarchyMeaning.exists()"/>
<source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="csd-4"/> <severity value="error"/> <human value="If the code system content = supplement, it must nominate what it's a supplement
for"/>
<expression value="CodeSystem.content = 'supplement' implies CodeSystem.supplements.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="scs-1"/> <severity value="error"/> <human value="If a codesystem contains nested concepts, it must specify hierarchyMeaning"/> <expression value="concept.concept.exists() implies hierarchyMeaning.exists()"/> </constraint> <constraint> <key value="scs-2"/> <severity value="error"/> <human value="If a codesystem contains example, fragment, or complete content, it must have at
least one concept"/>
<expression value="content in ( 'example' | 'fragment' | 'complete' ) implies concept.exists()"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> <mapping> <identity value="w5"/> <map value="conformance.terminology"/> </mapping> </element> <element id="CodeSystem.id"> <path value="CodeSystem.id"/> <short value="Logical id of this artifact"/> <definition value="The logical id of the resource, as used in the URL for the resource. Once assigned,
this value never changes."/>
<comment value="Within the context of the FHIR RESTful interactions, the resource has an id except
for cases like the create and conditional update. Otherwise, the use of the resouce
id depends on the given use case."/>
<min value="0"/> <max value="1"/> <base> <path value="Resource.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="id"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.meta"> <path value="CodeSystem.meta"/> <short value="Metadata about the resource"/> <definition value="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."/>
<min value="0"/> <max value="1"/> <base> <path value="Resource.meta"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Meta"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.implicitRules"> <path value="CodeSystem.implicitRules"/> <short value="A set of rules under which this content was created"/> <definition value="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."/>
<comment value="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 its narrative along with other profiles,
value sets, etc."/>
<min value="0"/> <max value="1"/> <base> <path value="Resource.implicitRules"/> <min value="0"/> <max value="1"/> </base> <type> <code value="uri"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="true"/> <isModifierReason value="This element is labeled as a modifier because the implicit rules may provide additional
knowledge about the resource that modifies its meaning or interpretation"/>
<isSummary value="true"/> </element> <element id="CodeSystem.language"> <path value="CodeSystem.language"/> <short value="Language of the resource content"/> <definition value="The base language in which the resource is written."/> <comment value="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)."/>
<min value="0"/> <max value="1"/> <base> <path value="Resource.language"/> <min value="0"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="Language"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="required"/> <description value="IETF language tag for a human language"/> <valueSet value="http://hl7.org/fhir/ValueSet/all-languages|5.0.0-draft-final"/> <additional> <purpose value="starter"/> <valueSet value="http://hl7.org/fhir/ValueSet/languages"/> </additional> </binding> </element> <element id="CodeSystem.text"> <path value="CodeSystem.text"/> <short value="Text summary of the resource, for human interpretation"/> <definition value="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."/>
<comment value="Contained resources do not have a 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."/>
<alias value="narrative"/> <alias value="html"/> <alias value="xhtml"/> <alias value="display"/> <min value="0"/> <max value="1"/> <base> <path value="DomainResource.text"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Narrative"/> </type> <condition value="dom-6"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="Act.text?"/> </mapping> </element> <element id="CodeSystem.contained"> <path value="CodeSystem.contained"/> <short value="Contained, inline Resources"/> <definition value="These resources do not have an independent existence apart from the resource that
contains them - they cannot be identified independently, nor can they have their
own independent transaction scope. This is allowed to be a Parameters resource
if and only if it is referenced by a resource that provides context/meaning."/>
<comment value="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."/>
<alias value="inline resources"/> <alias value="anonymous resources"/> <alias value="contained resources"/> <min value="0"/> <max value="*"/> <base> <path value="DomainResource.contained"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Resource"/> </type> <condition value="dom-2"/> <condition value="dom-4"/> <condition value="dom-3"/> <condition value="dom-5"/> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.extension"> <path value="CodeSystem.extension"/> <slicing> <discriminator> <type value="value"/> <path value="url"/> </discriminator> <ordered value="false"/> <rules value="open"/> </slicing> <short value="Extension"/> <definition value="An Extension"/> <min value="0"/> <max value="*"/> <base> <path value="DomainResource.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.extension:knowledgeRepresentationLevel"> <path value="CodeSystem.extension"/> <sliceName value="knowledgeRepresentationLevel"/> <short value="narrative | semi-structured | structured | executable"/> <definition value="Defines a knowledge representation level provided by this knowledge artifact."/> <min value="0"/> <max value="*"/> <base> <path value="DomainResource.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> </element> <element id="CodeSystem.modifierExtension"> <path value="CodeSystem.modifierExtension"/> <short value="Extensions that cannot be ignored"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="DomainResource.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <mustSupport value="false"/> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
resource that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.url"> <path value="CodeSystem.url"/> <short value="Canonical identifier for this code system, represented as a URI (globally unique)
(Coding.system)"/>
<definition value="An absolute URI that is used to identify this code system when it is referenced
in a specification, model, design or an instance; also called its canonical identifier.
This SHOULD be globally unique and SHOULD be a literal address at which an authoritative
instance of this code system is (or will be) published. This URL can be the target
of a canonical reference. It SHALL remain the same when the code system is stored
on different servers. This is used in [Coding](datatypes.html#Coding).system."/>
<comment value="Can be a urn:uuid: or a urn:oid: but real http: addresses are preferred. Multiple
instances may share the same URL if they have a distinct version.
The determination of when to create a new version of a resource (same url, new
version) vs. defining a new artifact is up to the author. Considerations for making
this decision are found in [Technical and Business Versions](resource.html#versions).
In some cases, the resource can no longer be found at the stated url, but the url
itself cannot change. Implementations can use the [meta.source](resource.html#meta)
element to indicate where the current master source of the resource can be found."/>
<requirements value="Allows the code system to be referenced by a single globally unique identifier."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.url"/> <min value="0"/> <max value="1"/> </base> <type> <code value="uri"/> </type> <constraint> <key value="cnl-1"/> <severity value="warning"/> <human value="URL should not contain | or # - these characters make processing canonical references
problematic"/>
<expression value="exists() implies matches('^[^|# ]+$')"/> <source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.identifier"/> </mapping> </element> <element id="CodeSystem.identifier"> <path value="CodeSystem.identifier"/> <short value="Additional identifier for the code system (business identifier)"/> <definition value="A formal identifier that is used to identify this code system when it is represented
in other formats, or referenced in a specification, model, design or an instance."/>
<comment value="Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier)
data type, and can then identify this code system outside of FHIR, where it is
not possible to use the logical URI. Note that HL7 defines at least three identifiers
for many of its code systems - the FHIR canonical URL, the OID and the V2 Table
0396 mnemonic code."/>
<requirements value="Allows externally provided and/or usable business identifiers to be easily associated
with the module."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.identifier"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Identifier"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.identifier"/> </mapping> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.version"> <path value="CodeSystem.version"/> <short value="Business version of the code system (Coding.version)"/> <definition value="The identifier that is used to identify this version of the code system when it
is referenced in a specification, model, design or instance. This is an arbitrary
value managed by the code system 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. There is also no expectation that versions can be placed in a lexicographical
sequence. This is used in [Coding](datatypes.html#Coding).version."/>
<comment value="There may be different code system instances that have the same identifier but
different versions. The version can be appended to the url in a reference to allow
a reference to a particular business version of the code system with the format
[url]|[version]. The version SHOULD NOT contain a '#' - see [Business Version](resource.html#
bv-format)."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.version"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.version"/> </mapping> </element> <element id="CodeSystem.versionAlgorithm[x]"> <path value="CodeSystem.versionAlgorithm[x]"/> <short value="How to compare versions"/> <definition value="Indicates the mechanism used to compare versions to determine which CodeSystem
is more current."/>
<comment value="If set as a string, this is a FHIRPath expression that has two additional context
variables passed in - %version1 and %version2 and will return a negative number
if version1 is newer, a positive number if version2 and a 0 if the version ordering
can't be successfully be determined."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.versionAlgorithm[x]"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <type> <code value="Coding"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <strength value="extensible"/> <valueSet value="http://hl7.org/fhir/ValueSet/version-algorithm"/> </binding> </element> <element id="CodeSystem.name"> <path value="CodeSystem.name"/> <short value="Name for this code system (computer friendly)"/> <definition value="A natural language name identifying the code system. This name should be usable
as an identifier for the module by machine processing applications such as code
generation."/>
<comment value="The name is not expected to be globally unique. The name should be a simple alphanumeric
type name to ensure that it is machine-processing friendly."/>
<requirements value="Support human navigation and code generation."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.name"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <condition value="cnl-0"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.title"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.title"/> <short value="Name for this code system (human friendly)"/> <definition value="A short, descriptive, user-friendly title for the code system."/> <comment value="This name does not need to be machine-processing friendly and may contain punctuation,
white-space, etc."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.title"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.status"> <path value="CodeSystem.status"/> <short value="draft | active | retired | unknown"/> <definition value="The status of this code system. Enables tracking the life-cycle of the content."/> <comment value="Allows filtering of code systems that are appropriate for use versus not."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.status"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="true"/> <isModifierReason value="This is labeled as "Is Modifier" because applications should not use
a retired CodeSystem without due consideration"/>
<isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="PublicationStatus"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="required"/> <description value="The lifecycle status of an artifact."/> <valueSet value="http://hl7.org/fhir/ValueSet/publication-status|5.0.0-draft-final"/> </binding> <mapping> <identity value="w5"/> <map value="FiveWs.status"/> </mapping> </element> <element id="CodeSystem.experimental"> <path value="CodeSystem.experimental"/> <short value="For testing purposes, not real usage"/> <definition value="A Boolean value to indicate that this code system is authored for testing purposes
(or education/evaluation/marketing) and is not intended to be used for genuine
usage."/>
<comment value="Allows filtering of code systems that are appropriate for use versus not."/> <requirements value="Enables experimental content to be developed following the same lifecycle that
would be used for a production-level code system."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.experimental"/> <min value="0"/> <max value="1"/> </base> <type> <code value="boolean"/> </type> <meaningWhenMissing value="If absent, this resource is treated as though it is not experimental."/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.class"/> </mapping> </element> <element id="CodeSystem.date"> <path value="CodeSystem.date"/> <short value="Date last changed"/> <definition value="The date (and optionally time) when the code system was last significantly changed.
The date must change when the business version changes and it must change if the
status code changes. In addition, it should change when the substantive content
of the code system changes."/>
<comment value="The date is often not tracked until the resource is published, but may be present
on draft content. Note that this is not the same as the resource last-modified-date,
since the resource may be a secondary representation of the code system. Additional
specific dates may be added as extensions or be found by consulting Provenances
associated with past versions of the resource."/>
<alias value="Revision Date"/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.date"/> <min value="0"/> <max value="1"/> </base> <type> <code value="dateTime"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.recorded"/> </mapping> </element> <element id="CodeSystem.publisher"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.publisher"/> <short value="Name of the publisher/steward (organization or individual)"/> <definition value="The name of the organization or individual responsible for the release and ongoing
maintenance of the code system."/>
<comment value="Usually an organization but may be an individual. The publisher (or steward) of
the code system is the organization or individual primarily responsible for the
maintenance and upkeep of the code system. This is not necessarily the same individual
or organization that developed and initially authored the content. The publisher
is the primary point of contact for questions or issues with the code system. This
item SHOULD be populated unless the information is available from context."/>
<requirements value="Helps establish the "authority/credibility" of the code system. May
also allow for contact."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.publisher"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="w5"/> <map value="FiveWs.witness"/> </mapping> </element> <element id="CodeSystem.contact"> <path value="CodeSystem.contact"/> <short value="Contact details for the publisher"/> <definition value="Contact details to assist a user in finding and communicating with the publisher."/> <comment value="May be a web site, an email address, a telephone number, etc."/> <min value="0"/> <max value="*"/> <base> <path value="CodeSystem.contact"/> <min value="0"/> <max value="*"/> </base> <type> <code value="ContactDetail"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.description"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.description"/> <short value="Natural language description of the code system"/> <definition value="A free text natural language description of the code system from a consumer's perspective."/> <comment value="This description can be used to capture details such as comments about misuse,
instructions for clinical use and interpretation, literature references, examples
from the paper world, etc. It is not a rendering of the code system as conveyed
in the 'text' field of the resource itself. This item SHOULD be populated unless
the information is available from context (e.g. the language of the code system
is presumed to be the predominant language in the place the code system was created)."/>
<alias value="Scope"/> <alias value="Purpose"/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.description"/> <min value="0"/> <max value="1"/> </base> <type> <code value="markdown"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.useContext"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.useContext"/> <short value="The context that the content is intended to support"/> <definition value="The content was developed with a focus and intent of supporting the contexts that
are listed. These contexts may be general categories (gender, age, ...) or may
be references to specific programs (insurance plans, studies, ...) and may be used
to assist with indexing and searching for appropriate code system instances."/>
<comment value="When multiple useContexts are specified, there is no expectation that all or any
of the contexts apply."/>
<requirements value="Assist in searching for appropriate content."/> <min value="0"/> <max value="*"/> <base> <path value="CodeSystem.useContext"/> <min value="0"/> <max value="*"/> </base> <type> <code value="UsageContext"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.jurisdiction"> <path value="CodeSystem.jurisdiction"/> <short value="Intended jurisdiction for code system (if applicable)"/> <definition value="A legal or geographic region in which the code system is intended to be used."/> <comment value="It may be possible for the code system to be used in jurisdictions other than those
for which it was originally designed or intended."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.jurisdiction"/> <min value="0"/> <max value="*"/> </base> <type> <code value="CodeableConcept"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="Jurisdiction"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="extensible"/> <description value="Countries and regions within which this artifact is targeted for use."/> <valueSet value="http://hl7.org/fhir/ValueSet/jurisdiction"/> </binding> </element> <element id="CodeSystem.purpose"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.purpose"/> <short value="Why this code system is defined"/> <definition value="Explanation of why this code system is needed and why it has been designed as it
has."/>
<comment value="This element does not describe the usage of the code system. Instead, it provides
traceability of ''why'' the resource is either needed or ''why'' it is defined
as it is. This may be used to point to source materials or specifications that
drove the structure of this code system."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.purpose"/> <min value="0"/> <max value="1"/> </base> <type> <code value="markdown"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="w5"/> <map value="FiveWs.why[x]"/> </mapping> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.copyright"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.copyright"/> <short value="Use and/or publishing restrictions"/> <definition value="A copyright statement relating to the code system and/or its contents. Copyright
statements are generally legal restrictions on the use and publishing of the code
system."/>
<comment value="... Sometimes, the copyright differs between the code system and the codes that
are included. The copyright statement should clearly differentiate between these
when required."/>
<requirements value="Consumers must be able to determine any legal restrictions on the use of the code
system and/or its content."/>
<alias value="License"/> <alias value="Restrictions"/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.copyright"/> <min value="0"/> <max value="1"/> </base> <type> <code value="markdown"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.copyrightLabel"> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-translatable"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.copyrightLabel"/> <short value="Copyright holder and year(s)"/> <definition value="A short string (<50 characters), suitable for inclusion in a page footer that
identifies the copyright holder, effective period, and optionally whether rights
are resctricted. (e.g. 'All rights reserved', 'Some rights reserved')."/>
<comment value="The (c) symbol should NOT be included in this string. It will be added by software
when rendering the notation. Full details about licensing, restrictions, warrantees,
etc. goes in the more general 'copyright' element."/>
<requirements value="Defines the content expected to be rendered in all representations of the artifact."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.copyrightLabel"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.approvalDate"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.approvalDate"/> <short value="When the CodeSystem was approved by publisher"/> <definition value="The date on which the resource content was approved by the publisher. Approval
happens once when the content is officially approved for usage."/>
<comment value="The 'date' element may be more recent than the approval date because of minor changes
or editorial corrections."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.approvalDate"/> <min value="0"/> <max value="1"/> </base> <type> <code value="date"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.lastReviewDate"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.lastReviewDate"/> <short value="When the CodeSystem was last reviewed by the publisher"/> <definition value="The date on which the resource content was last reviewed. Review happens periodically
after approval but does not change the original approval date."/>
<comment value="If specified, this date follows the original approval date."/> <requirements value="Gives a sense of how "current" the content is. Resources that have not
been reviewed in a long time may have a risk of being less appropriate/relevant."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.lastReviewDate"/> <min value="0"/> <max value="1"/> </base> <type> <code value="date"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.effectivePeriod"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.effectivePeriod"/> <short value="When the CodeSystem is expected to be used"/> <definition value="The period during which the CodeSystem content was or is planned to be in active
use."/>
<comment value="The effective period for a CodeSystem determines when the content is applicable
for usage and is independent of publication and review dates. For example, a measure
intended to be used for the year 2016 might be published in 2015."/>
<requirements value="Allows establishing a transition before a resource comes into effect and also allows
for a sunsetting process when new versions of the CodeSystem are or are expected
to be used instead."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.effectivePeriod"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Period"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <mapping> <identity value="objimpl"/> <map value="no-gen-base"/> </mapping> </element> <element id="CodeSystem.topic"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.topic"/> <short value="E.g. Education, Treatment, Assessment, etc"/> <definition value="Descriptions related to the content of the CodeSystem. Topics provide a high-level
categorization as well as keywords for the CodeSystem that can be useful for filtering
and searching."/>
<comment value="This element provides topical categorization and keywords for the CodeSystem, as
opposed to the more structured context-of-use information provided in the useContext
element"/>
<requirements value="Repositories must be able to determine how to categorize the CodeSystem so that
it can be found by topical and keyword searches."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.topic"/> <min value="0"/> <max value="*"/> </base> <type> <code value="CodeableConcept"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="DefinitionTopic"/> </extension> <strength value="example"/> <valueSet value="http://hl7.org/fhir/ValueSet/definition-topic"/> </binding> </element> <element id="CodeSystem.author"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.author"/> <short value="Who authored the CodeSystem"/> <definition value="An individiual or organization primarily involved in the creation and maintenance
of the CodeSystem."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.author"/> <min value="0"/> <max value="*"/> </base> <type> <code value="ContactDetail"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.editor"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.editor"/> <short value="Who edited the CodeSystem"/> <definition value="An individual or organization primarily responsible for internal coherence of the
CodeSystem."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.editor"/> <min value="0"/> <max value="*"/> </base> <type> <code value="ContactDetail"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.reviewer"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.reviewer"/> <short value="Who reviewed the CodeSystem"/> <definition value="An individual or organization asserted by the publisher to be primarily responsible
for review of some aspect of the CodeSystem."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.reviewer"/> <min value="0"/> <max value="*"/> </base> <type> <code value="ContactDetail"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.endorser"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.endorser"/> <short value="Who endorsed the CodeSystem"/> <definition value="An individual or organization asserted by the publisher to be responsible for officially
endorsing the CodeSystem for use in some setting."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.endorser"/> <min value="0"/> <max value="*"/> </base> <type> <code value="ContactDetail"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.relatedArtifact"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.relatedArtifact"/> <short value="Additional documentation, citations, etc"/> <definition value="Related artifacts such as additional documentation, justification, dependencies,
bibliographic references, and predecessor and successor artifacts."/>
<comment value="Each related artifact is either an attachment, or a reference to another resource,
but not both."/>
<requirements value="A CodeSystem must be able to provide enough information for consumers of the content
(and/or interventions or results produced by the content) to be able to determine
and understand the justification for and evidence in support of the content."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.relatedArtifact"/> <min value="0"/> <max value="*"/> </base> <type> <code value="RelatedArtifact"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.caseSensitive"> <path value="CodeSystem.caseSensitive"/> <short value="If code comparison is case sensitive"/> <definition value="If code comparison is case sensitive when codes within this system are compared
to each other."/>
<comment value="If this value is missing, then it is not specified whether a code system is case
sensitive or not. When the rule is not known, Postel's law should be followed:
produce codes with the correct case, and accept codes in any case. This element
is primarily provided to support validation software."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.caseSensitive"/> <min value="0"/> <max value="1"/> </base> <type> <code value="boolean"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.valueSet"> <path value="CodeSystem.valueSet"/> <short value="Canonical reference to the value set with entire code system"/> <definition value="Canonical reference to the value set that contains all codes in the code system
independent of code status."/>
<comment value="The definition of the value set SHALL include all codes from this code system,
independent of concept status, and only codes from this code system. It SHALL be
immutable, and operations SHOULD support validation of any allowed code compositions."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.valueSet"/> <min value="0"/> <max value="1"/> </base> <type> <code value="canonical"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/ValueSet"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.hierarchyMeaning"> <path value="CodeSystem.hierarchyMeaning"/> <short value="grouped-by | is-a | part-of | classified-with"/> <definition value="The meaning of the hierarchy of concepts as represented in this resource."/> <comment value="Note that other representations might have a different hierarchy or none at all,
and represent the information using properties."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.hierarchyMeaning"/> <min value="0"/> <max value="1"/> </base> <type> <code value="code"/> </type> <condition value="csd-2"/> <condition value="csd-3"/> <condition value="scs-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="CodeSystemHierarchyMeaning"/> </extension> <strength value="required"/> <description value="The meaning of the hierarchy of concepts in a code system."/> <valueSet value="http://hl7.org/fhir/ValueSet/codesystem-hierarchy-meaning|5.0.0-draft-final"/> </binding> </element> <element id="CodeSystem.compositional"> <path value="CodeSystem.compositional"/> <short value="If code system defines a compositional grammar"/> <definition value="The code system defines a compositional (post-coordination) grammar."/> <comment value="Note that the code system resource does not define what the compositional grammar
is, only whether or not there is one."/>
<alias value="grammar"/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.compositional"/> <min value="0"/> <max value="1"/> </base> <type> <code value="boolean"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.versionNeeded"> <path value="CodeSystem.versionNeeded"/> <short value="If definitions are not stable"/> <definition value="This flag is used to signify that the code system does not commit to concept permanence
across versions. If true, a version must be specified when referencing this code
system."/>
<comment value="Best practice is that code systems do not redefine concepts, or that if concepts
are redefined, a new code system definition is created. But this is not always
possible, so some code systems may be defined as 'versionNeeded'.
Most code systems occasionally refine the displays defined for concepts between
versions. Contexts in which the concept display values are validated may require
that the version be specified for some code systems irrespective of the value of
this property."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.versionNeeded"/> <min value="0"/> <max value="1"/> </base> <type> <code value="boolean"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.content"> <path value="CodeSystem.content"/> <short value="not-present | example | fragment | complete | supplement"/> <definition value="The extent of the content of the code system (the concepts and codes it defines)
are represented in this resource instance."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.content"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <condition value="csd-4"/> <condition value="scs-2"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="CodeSystemContentMode"/> </extension> <strength value="required"/> <description value="The extent of the content of the code system (the concepts and codes it defines)
are represented in a code system resource."/>
<valueSet value="http://hl7.org/fhir/ValueSet/codesystem-content-mode|5.0.0-draft-final"/> </binding> </element> <element id="CodeSystem.supplements"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"> <valueCode value="trial-use"/> </extension> <path value="CodeSystem.supplements"/> <short value="Canonical URL of Code System this adds designations and properties to"/> <definition value="The canonical URL of the code system that this code system supplement is adding
designations and properties to."/>
<comment value="The most common use of a code system supplement is to add additional language support."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.supplements"/> <min value="0"/> <max value="1"/> </base> <type> <code value="canonical"/> <targetProfile value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </type> <condition value="csd-4"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.count"> <path value="CodeSystem.count"/> <short value="Total concepts in the code system"/> <definition value="The total number of concepts defined by the code system. Where the code system
has a compositional grammar, the basis of this count is defined by the system steward."/>
<comment value="The count of concepts defined in this resource cannot be more than this value but
may be less for several reasons - see the content element."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.count"/> <min value="0"/> <max value="1"/> </base> <type> <code value="unsignedInt"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.filter"> <path value="CodeSystem.filter"/> <short value="Filter that can be used in a value set"/> <definition value="A filter that can be used in a value set compose statement when selecting concepts
using a filter."/>
<comment value="Note that filters defined in code systems usually require custom code on the part
of any terminology engine that will make them available for use in value set filters.
For this reason, they are generally only seen in high value published terminologies."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.filter"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.filter.id"> <path value="CodeSystem.filter.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces."/>
<min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <condition value="ele-1"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.filter.extension"> <path value="CodeSystem.filter.extension"/> <short value="Additional content defined by implementations"/> <definition value="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 managable, 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."/>
<comment value="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."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.filter.modifierExtension"> <path value="CodeSystem.filter.modifierExtension"/> <short value="Extensions that cannot be ignored even if unrecognized"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <alias value="modifiers"/> <min value="0"/> <max value="*"/> <base> <path value="BackboneElement.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
element that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.filter.code"> <extension url="http://hl7.org/fhir/build/StructureDefinition/no-binding"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.filter.code"/> <short value="Code that identifies the filter"/> <definition value="The code that identifies this filter when it is used as a filter in [ValueSet](valueset.html#
).compose.include.filter."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.filter.code"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.filter.description"> <path value="CodeSystem.filter.description"/> <short value="How or why the filter is used"/> <definition value="A description of how or why the filter is used."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.filter.description"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.filter.operator"> <path value="CodeSystem.filter.operator"/> <short value="= | is-a | descendent-of | is-not-a | regex | in | not-in | generalizes | child-of
| descendent-leaf | exists"/>
<definition value="A list of operators that can be used with the filter."/> <min value="1"/> <max value="*"/> <base> <path value="CodeSystem.filter.operator"/> <min value="1"/> <max value="*"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="FilterOperator"/> </extension> <strength value="required"/> <description value="The kind of operation to perform as a part of a property based filter."/> <valueSet value="http://hl7.org/fhir/ValueSet/filter-operator|5.0.0-draft-final"/> </binding> </element> <element id="CodeSystem.filter.value"> <path value="CodeSystem.filter.value"/> <short value="What to use for the value"/> <definition value="A description of what the value for the filter should be."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.filter.value"/> <min value="1"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.property"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name"> <valueString value="Property"/> </extension> <path value="CodeSystem.property"/> <short value="Additional information supplied about each concept"/> <definition value="A property defines an additional slot through which additional information can
be provided about a concept."/>
<comment value="Multiple occurrences of CodeSystem.concept.property may occur for a CodeSystem.property
where CodeSystem.concept.property.code is the same and CodeSystem.concept.property.value
differs. For example: multiple designations for a single concept."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.property"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.property.id"> <path value="CodeSystem.property.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces."/>
<min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <condition value="ele-1"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.property.extension"> <path value="CodeSystem.property.extension"/> <short value="Additional content defined by implementations"/> <definition value="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 managable, 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."/>
<comment value="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."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.property.modifierExtension"> <path value="CodeSystem.property.modifierExtension"/> <short value="Extensions that cannot be ignored even if unrecognized"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <alias value="modifiers"/> <min value="0"/> <max value="*"/> <base> <path value="BackboneElement.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
element that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.property.code"> <extension url="http://hl7.org/fhir/build/StructureDefinition/no-binding"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.property.code"/> <short value="Identifies the property on the concepts, and when referred to in operations"/> <definition value="A code that is used to identify the property. The code is used internally (in CodeSystem.conc
ept.property.code) and also externally, such as in property filters."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.property.code"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.property.uri"> <path value="CodeSystem.property.uri"/> <short value="Formal identifier for the property"/> <definition value="Reference to the formal meaning of the property. One possible source of meaning
is the [Concept Properties](codesystem-concept-properties.html) code system."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.property.uri"/> <min value="0"/> <max value="1"/> </base> <type> <code value="uri"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.property.description"> <path value="CodeSystem.property.description"/> <short value="Why the property is defined, and/or what it conveys"/> <definition value="A description of the property- why it is defined, and how its value might be used."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.property.description"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> </element> <element id="CodeSystem.property.type"> <path value="CodeSystem.property.type"/> <short value="code | Coding | string | integer | boolean | dateTime | decimal"/> <definition value="The type of the property value. Properties of type "code" contain a code
defined by the code system (e.g. a reference to another defined concept)."/>
<min value="1"/> <max value="1"/> <base> <path value="CodeSystem.property.type"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="true"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="PropertyType"/> </extension> <strength value="required"/> <description value="The type of a property value."/> <valueSet value="http://hl7.org/fhir/ValueSet/concept-property-type|5.0.0-draft-final"/> </binding> </element> <element id="CodeSystem.concept"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name"> <valueString value="ConceptDefinition"/> </extension> <path value="CodeSystem.concept"/> <short value="Concepts in the code system"/> <definition value="Concepts that are in the code system. The concept definitions are inherently hierarchical,
but the definitions must be consulted to determine what the meanings of the hierarchical
relationships are."/>
<comment value="If this is empty, it means that the code system resource does not represent the
content of the code system."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.concept"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <condition value="csd-1"/> <condition value="csd-2"/> <condition value="csd-3"/> <condition value="scs-2"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.id"> <path value="CodeSystem.concept.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces."/>
<min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <condition value="ele-1"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.extension"> <path value="CodeSystem.concept.extension"/> <short value="Additional content defined by implementations"/> <definition value="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 managable, 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."/>
<comment value="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."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.modifierExtension"> <path value="CodeSystem.concept.modifierExtension"/> <short value="Extensions that cannot be ignored even if unrecognized"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <alias value="modifiers"/> <min value="0"/> <max value="*"/> <base> <path value="BackboneElement.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
element that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.concept.code"> <extension url="http://hl7.org/fhir/build/StructureDefinition/no-binding"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.concept.code"/> <short value="Code that identifies concept"/> <definition value="A code - a text symbol - that uniquely identifies the concept within the code system."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.concept.code"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <condition value="csd-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.display"> <path value="CodeSystem.concept.display"/> <short value="Text to display to the user"/> <definition value="A human readable string that is the recommended default way to present this concept
to a user."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.concept.display"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.definition"> <path value="CodeSystem.concept.definition"/> <short value="Formal definition"/> <definition value="The formal definition of the concept. The code system resource does not make formal
definitions required, because of the prevalence of legacy systems. However, they
are highly recommended, as without them there is no formal meaning associated with
the concept."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.concept.definition"/> <min value="0"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.designation"> <path value="CodeSystem.concept.designation"/> <short value="Additional representations for the concept"/> <definition value="Additional representations for the concept - other languages, aliases, specialized
purposes, used for particular purposes, etc."/>
<comment value="Concepts have both a ```display``` and an array of ```designation```. The display
is equivalent to a special designation with an implied ```designation.use``` of
"primary code" and a language equal to the [Resource Language](resource.html#langua
ge)."/>
<requirements value="Many concept definition systems support multiple representations, in multiple languages,
and for multiple purposes."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.concept.designation"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <constraint> <key value="csd-5"/> <severity value="error"/> <human value="Must have a value for concept.designation.use if concept.designation.additionalUse
is present"/>
<expression value="additionalUse.exists() implies use.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/CodeSystem"/> </constraint> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.designation.id"> <path value="CodeSystem.concept.designation.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces."/>
<min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <condition value="ele-1"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.designation.extension"> <path value="CodeSystem.concept.designation.extension"/> <short value="Additional content defined by implementations"/> <definition value="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 managable, 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."/>
<comment value="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."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.designation.modifierExtension"> <path value="CodeSystem.concept.designation.modifierExtension"/> <short value="Extensions that cannot be ignored even if unrecognized"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <alias value="modifiers"/> <min value="0"/> <max value="*"/> <base> <path value="BackboneElement.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
element that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.concept.designation.language"> <path value="CodeSystem.concept.designation.language"/> <short value="Human language of the designation"/> <definition value="The language this designation is defined for."/> <comment value="In the absence of a language, the resource language applies."/> <min value="0"/> <max value="1"/> <base> <path value="CodeSystem.concept.designation.language"/> <min value="0"/> <max value="1"/> </base> <type> <code value="code"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="Language"/> </extension> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-isCommonBinding"> <valueBoolean value="true"/> </extension> <strength value="required"/> <description value="IETF language tag for a human language"/> <valueSet value="http://hl7.org/fhir/ValueSet/all-languages|5.0.0-draft-final"/> <additional> <purpose value="starter"/> <valueSet value="http://hl7.org/fhir/ValueSet/languages"/> </additional> </binding> </element> <element id="CodeSystem.concept.designation.use"> <path value="CodeSystem.concept.designation.use"/> <short value="Details how this designation would be used"/> <definition value="A code that details how this designation would be used."/> <comment value="If no use is provided, the designation can be assumed to be suitable for general
display to a human user."/>
<min value="0"/> <max value="1"/> <base> <path value="CodeSystem.concept.designation.use"/> <min value="0"/> <max value="1"/> </base> <type> <code value="Coding"/> </type> <condition value="csd-5"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="ConceptDesignationUse"/> </extension> <strength value="extensible"/> <description value="Details of how a designation would be used."/> <valueSet value="http://hl7.org/fhir/ValueSet/designation-use"/> </binding> </element> <element id="CodeSystem.concept.designation.additionalUse"> <path value="CodeSystem.concept.designation.additionalUse"/> <short value="Additional ways how this designation would be used"/> <definition value="Additional codes that detail how this designation would be used, if there is more
than one use."/>
<comment value="This was added rather than increasing the cardinality of .use to 0..* in order
to maintain backward compatibility."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.concept.designation.additionalUse"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Coding"/> </type> <condition value="csd-5"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> <binding> <extension url="http://hl7.org/fhir/StructureDefinition/elementdefinition-bindingName"> <valueString value="ConceptDesignationUse"/> </extension> <strength value="extensible"/> <description value="Details of how a designation would be used."/> <valueSet value="http://hl7.org/fhir/ValueSet/designation-use"/> </binding> </element> <element id="CodeSystem.concept.designation.value"> <path value="CodeSystem.concept.designation.value"/> <short value="The text value for this designation"/> <definition value="The text value for this designation."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.concept.designation.value"/> <min value="1"/> <max value="1"/> </base> <type> <code value="string"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.property"> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-explicit-type-name"> <valueString value="ConceptProperty"/> </extension> <path value="CodeSystem.concept.property"/> <short value="Property value for the concept"/> <definition value="A property value for this concept."/> <min value="0"/> <max value="*"/> <base> <path value="CodeSystem.concept.property"/> <min value="0"/> <max value="*"/> </base> <type> <code value="BackboneElement"/> </type> <condition value="csd-3"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.property.id"> <path value="CodeSystem.concept.property.id"/> <representation value="xmlAttr"/> <short value="Unique id for inter-element referencing"/> <definition value="Unique id for the element within a resource (for internal references). This may
be any string value that does not contain spaces."/>
<min value="0"/> <max value="1"/> <base> <path value="Element.id"/> <min value="0"/> <max value="1"/> </base> <type> <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type"> <valueUrl value="string"/> </extension> <code value="http://hl7.org/fhirpath/System.String"/> </type> <condition value="ele-1"/> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.property.extension"> <path value="CodeSystem.concept.property.extension"/> <short value="Additional content defined by implementations"/> <definition value="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 managable, 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."/>
<comment value="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."/>
<alias value="extensions"/> <alias value="user content"/> <min value="0"/> <max value="*"/> <base> <path value="Element.extension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="false"/> <isSummary value="false"/> <mapping> <identity value="rim"/> <map value="n/a"/> </mapping> </element> <element id="CodeSystem.concept.property.modifierExtension"> <path value="CodeSystem.concept.property.modifierExtension"/> <short value="Extensions that cannot be ignored even if unrecognized"/> <definition value="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 managable, 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)."/>
<comment value="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."/>
<requirements value="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](extensibility.html#modifierExtension)."/>
<alias value="extensions"/> <alias value="user content"/> <alias value="modifiers"/> <min value="0"/> <max value="*"/> <base> <path value="BackboneElement.modifierExtension"/> <min value="0"/> <max value="*"/> </base> <type> <code value="Extension"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <constraint> <key value="ext-1"/> <severity value="error"/> <human value="Must have either extensions or value[x], not both"/> <expression value="extension.exists() != value.exists()"/> <source value="http://hl7.org/fhir/StructureDefinition/Extension"/> </constraint> <isModifier value="true"/> <isModifierReason value="Modifier extensions are expected to modify the meaning or interpretation of the
element that contains them"/>
<isSummary value="true"/> <mapping> <identity value="rim"/> <map value="N/A"/> </mapping> </element> <element id="CodeSystem.concept.property.code"> <extension url="http://hl7.org/fhir/build/StructureDefinition/no-binding"> <valueBoolean value="true"/> </extension> <path value="CodeSystem.concept.property.code"/> <short value="Reference to CodeSystem.property.code"/> <definition value="A code that is a reference to CodeSystem.property.code."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.concept.property.code"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <condition value="csd-3"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.property.value[x]"> <path value="CodeSystem.concept.property.value[x]"/> <short value="Value of the property for this concept"/> <definition value="The value of this property."/> <min value="1"/> <max value="1"/> <base> <path value="CodeSystem.concept.property.value[x]"/> <min value="1"/> <max value="1"/> </base> <type> <code value="code"/> </type> <type> <code value="Coding"/> </type> <type> <code value="string"/> </type> <type> <code value="integer"/> </type> <type> <code value="boolean"/> </type> <type> <code value="dateTime"/> </type> <type> <code value="decimal"/> </type> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="false"/> <isModifier value="false"/> <isSummary value="false"/> </element> <element id="CodeSystem.concept.concept"> <path value="CodeSystem.concept.concept"/> <short value="Child Concepts (is-a/contains/categorizes)"/> <definition value="Defines children of a concept to produce a hierarchy of concepts. The nature of
the relationships is variable (is-a/contains/categorizes) - see hierarchyMeaning."/>
<min value="0"/> <max value="*"/> <base> <path value="CodeSystem.concept.concept"/> <min value="0"/> <max value="*"/> </base> <contentReference value="http://hl7.org/fhir/StructureDefinition/CodeSystem#CodeSystem.concept"/> <condition value="scs-1"/> <constraint> <key value="ele-1"/> <severity value="error"/> <human value="All FHIR elements must have a @value or children"/> <expression value="hasValue() or (children().count() > id.count())"/> <source value="http://hl7.org/fhir/StructureDefinition/Element"/> </constraint> <mustSupport value="true"/> <isModifier value="false"/> <isSummary value="false"/> </element> </snapshot> <differential> <element id="CodeSystem"> <path value="CodeSystem"/> <min value="1"/> <max value="1"/> <constraint> <key value="scs-1"/> <severity value="error"/> <human value="If a codesystem contains nested concepts, it must specify hierarchyMeaning"/> <expression value="concept.concept.exists() implies hierarchyMeaning.exists()"/> </constraint> <constraint> <key value="scs-2"/> <severity value="error"/> <human value="If a codesystem contains example, fragment, or complete content, it must have at
least one concept"/>
<expression value="content in ( 'example' | 'fragment' | 'complete' ) implies concept.exists()"/> </constraint> </element> <element id="CodeSystem.extension:knowledgeRepresentationLevel"> <path value="CodeSystem.extension"/> <sliceName value="knowledgeRepresentationLevel"/> <min value="0"/> <max value="*"/> <type> <code value="Extension"/> <profile value="http://hl7.org/fhir/StructureDefinition/cqf-knowledgeRepresentationLevel"/> </type> <mustSupport value="true"/> </element> <element id="CodeSystem.url"> <path value="CodeSystem.url"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.version"> <path value="CodeSystem.version"/> <min value="1"/> <max value="1"/> <type> <code value="string"/> </type> <mustSupport value="true"/> </element> <element id="CodeSystem.versionAlgorithm[x]"> <path value="CodeSystem.versionAlgorithm[x]"/> <mustSupport value="true"/> </element> <element id="CodeSystem.name"> <path value="CodeSystem.name"/> <mustSupport value="true"/> </element> <element id="CodeSystem.title"> <path value="CodeSystem.title"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.status"> <path value="CodeSystem.status"/> <mustSupport value="true"/> </element> <element id="CodeSystem.experimental"> <path value="CodeSystem.experimental"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.publisher"> <path value="CodeSystem.publisher"/> <mustSupport value="true"/> </element> <element id="CodeSystem.description"> <path value="CodeSystem.description"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.caseSensitive"> <path value="CodeSystem.caseSensitive"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.hierarchyMeaning"> <path value="CodeSystem.hierarchyMeaning"/> <condition value="scs-1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.content"> <path value="CodeSystem.content"/> <condition value="scs-2"/> <mustSupport value="true"/> </element> <element id="CodeSystem.concept"> <path value="CodeSystem.concept"/> <condition value="scs-2"/> <mustSupport value="true"/> </element> <element id="CodeSystem.concept.code"> <path value="CodeSystem.concept.code"/> <min value="1"/> <max value="1"/> <mustSupport value="true"/> </element> <element id="CodeSystem.concept.display"> <path value="CodeSystem.concept.display"/> <mustSupport value="true"/> </element> <element id="CodeSystem.concept.definition"> <path value="CodeSystem.concept.definition"/> <mustSupport value="true"/> </element> <element id="CodeSystem.concept.concept"> <path value="CodeSystem.concept.concept"/> <min value="0"/> <max value="*"/> <contentReference value="http://hl7.org/fhir/StructureDefinition/CodeSystem#CodeSystem.concept"/> <condition value="scs-1"/> <mustSupport value="true"/> </element> </differential>
</
StructureDefinition
>
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