This page is part of the FHIR Specification (v3.5.0: R4 Ballot #2). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3 R2
FHIR Infrastructure Work Group | Maturity Level: 1 | Trial Use | Compartments: Not linked to any defined compartments |
A curated namespace that issues unique symbols within that namespace for the identification of concepts, people, devices, etc. Represents a "System" used within the Identifier and Coding data types.
Defines a specific code system or identifier system, so that it can be noted in a registry for other systems to find and understand an identifier.
The CodeSystem
resource defines the content of a code system, and also its preferred identifier.
The NamingSystem
resource identifies the existence of a code or identifier system, and its possible and preferred identifiers.
The key difference between the resources is who creates and manages them - CodeSystem
resources are managed
by the owner of the code system resource, who can properly define the features and content of the code system.
NamingSystem
resources, on the other hand, are frequently defined by 3rd parties that encounter the
code system in use, and need to describe the use, but do not have the authority to define the features and content.
Additionally, there may be multiple authoritative NamingSystem
resources for a code system, but there
should only be one CodeSystem
resource.
For discussion of policy for creating well maintained OIDs and URIs for resources, see The HL7 WIKI .
Structure
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
NamingSystem | ITU | DomainResource | System of unique identification + Warning: Name should be usable as an identifier for the module by machine processing applications such as code generation + Rule: Root systems cannot have uuid identifiers + Rule: Can't have more than one preferred identifier for a type Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension | |
name | ΣI | 1..1 | string | Name for this naming system (computer friendly) |
status | ?!Σ | 1..1 | code | draft | active | retired | unknown PublicationStatus (Required) |
kind | Σ | 1..1 | code | codesystem | identifier | root NamingSystemType (Required) |
date | Σ | 1..1 | dateTime | Date last changed |
publisher | Σ | 0..1 | string | Name of the publisher (organization or individual) |
contact | Σ | 0..* | ContactDetail | Contact details for the publisher |
responsible | 0..1 | string | Who maintains system namespace? | |
type | 0..1 | CodeableConcept | e.g. driver, provider, patient, bank etc. IdentifierType (Extensible) | |
description | 0..1 | markdown | Natural language description of the naming system | |
useContext | Σ | 0..* | UsageContext | The context that the content is intended to support |
jurisdiction | Σ | 0..* | CodeableConcept | Intended jurisdiction for naming system (if applicable) Jurisdiction (Extensible) |
usage | 0..1 | string | How/where is it used | |
uniqueId | Σ | 1..* | BackboneElement | Unique identifiers used for system |
type | Σ | 1..1 | code | oid | uuid | uri | other NamingSystemIdentifierType (Required) |
value | Σ | 1..1 | string | The unique identifier |
preferred | 0..1 | boolean | Is this the id that should be used for this type | |
comment | 0..1 | string | Notes about identifier usage | |
period | 0..1 | Period | When is identifier valid? | |
Documentation for this format |
UML Diagram (Legend)
XML Template
<NamingSystem xmlns="http://hl7.org/fhir"> <!-- from Resource: id, meta, implicitRules, and language --> <!-- from DomainResource: text, contained, extension, and modifierExtension --> <name value="[string]"/><!-- 1..1 Name for this naming system (computer friendly) --> <status value="[code]"/><!-- 1..1 draft | active | retired | unknown --> <kind value="[code]"/><!-- 1..1 codesystem | identifier | root --> <date value="[dateTime]"/><!-- 1..1 Date last changed --> <publisher value="[string]"/><!-- 0..1 Name of the publisher (organization or individual) --> <contact><!-- 0..* ContactDetail Contact details for the publisher --></contact> <responsible value="[string]"/><!-- 0..1 Who maintains system namespace? --> <type><!-- 0..1 CodeableConcept e.g. driver, provider, patient, bank etc. --></type> <description value="[markdown]"/><!-- 0..1 Natural language description of the naming system --> <useContext><!-- 0..* UsageContext The context that the content is intended to support --></useContext> <jurisdiction><!-- 0..* CodeableConcept Intended jurisdiction for naming system (if applicable) --></jurisdiction> <usage value="[string]"/><!-- 0..1 How/where is it used --> <uniqueId> <!-- 1..* Unique identifiers used for system --> <type value="[code]"/><!-- 1..1 oid | uuid | uri | other --> <value value="[string]"/><!-- 1..1 The unique identifier --> <preferred value="[boolean]"/><!-- 0..1 Is this the id that should be used for this type --> <comment value="[string]"/><!-- 0..1 Notes about identifier usage --> <period><!-- 0..1 Period When is identifier valid? --></period> </uniqueId> </NamingSystem>
JSON Template
{ "resourceType" : "NamingSystem", // from Resource: id, meta, implicitRules, and language // from DomainResource: text, contained, extension, and modifierExtension "name" : "<string>", // C? R! Name for this naming system (computer friendly) "status" : "<code>", // R! draft | active | retired | unknown "kind" : "<code>", // R! codesystem | identifier | root "date" : "<dateTime>", // R! Date last changed "publisher" : "<string>", // Name of the publisher (organization or individual) "contact" : [{ ContactDetail }], // Contact details for the publisher "responsible" : "<string>", // Who maintains system namespace? "type" : { CodeableConcept }, // e.g. driver, provider, patient, bank etc. "description" : "<markdown>", // Natural language description of the naming system "useContext" : [{ UsageContext }], // The context that the content is intended to support "jurisdiction" : [{ CodeableConcept }], // Intended jurisdiction for naming system (if applicable) "usage" : "<string>", // How/where is it used "uniqueId" : [{ // R! Unique identifiers used for system "type" : "<code>", // R! oid | uuid | uri | other "value" : "<string>", // R! The unique identifier "preferred" : <boolean>, // Is this the id that should be used for this type "comment" : "<string>", // Notes about identifier usage "period" : { Period } // When is identifier valid? }] }
Turtle Template
@prefix fhir: <http://hl7.org/fhir/> . [ a fhir:NamingSystem; fhir:nodeRole fhir:treeRoot; # if this is the parser root # from Resource: .id, .meta, .implicitRules, and .language # from DomainResource: .text, .contained, .extension, and .modifierExtension fhir:NamingSystem.name [ string ]; # 1..1 Name for this naming system (computer friendly) fhir:NamingSystem.status [ code ]; # 1..1 draft | active | retired | unknown fhir:NamingSystem.kind [ code ]; # 1..1 codesystem | identifier | root fhir:NamingSystem.date [ dateTime ]; # 1..1 Date last changed fhir:NamingSystem.publisher [ string ]; # 0..1 Name of the publisher (organization or individual) fhir:NamingSystem.contact [ ContactDetail ], ... ; # 0..* Contact details for the publisher fhir:NamingSystem.responsible [ string ]; # 0..1 Who maintains system namespace? fhir:NamingSystem.type [ CodeableConcept ]; # 0..1 e.g. driver, provider, patient, bank etc. fhir:NamingSystem.description [ markdown ]; # 0..1 Natural language description of the naming system fhir:NamingSystem.useContext [ UsageContext ], ... ; # 0..* The context that the content is intended to support fhir:NamingSystem.jurisdiction [ CodeableConcept ], ... ; # 0..* Intended jurisdiction for naming system (if applicable) fhir:NamingSystem.usage [ string ]; # 0..1 How/where is it used fhir:NamingSystem.uniqueId [ # 1..* Unique identifiers used for system fhir:NamingSystem.uniqueId.type [ code ]; # 1..1 oid | uuid | uri | other fhir:NamingSystem.uniqueId.value [ string ]; # 1..1 The unique identifier fhir:NamingSystem.uniqueId.preferred [ boolean ]; # 0..1 Is this the id that should be used for this type fhir:NamingSystem.uniqueId.comment [ string ]; # 0..1 Notes about identifier usage fhir:NamingSystem.uniqueId.period [ Period ]; # 0..1 When is identifier valid? ], ...; ]
Changes since R3
NamingSystem | |
NamingSystem.replacedBy |
|
See the Full Difference for further information
This analysis is available as XML or JSON.
See R3 <--> R4 Conversion Maps (status = 3 tests that all execute ok. 3 fail round-trip testing and 3 r3 resources are invalid (0 errors).)
Structure
Name | Flags | Card. | Type | Description & Constraints |
---|---|---|---|---|
NamingSystem | ITU | DomainResource | System of unique identification + Warning: Name should be usable as an identifier for the module by machine processing applications such as code generation + Rule: Root systems cannot have uuid identifiers + Rule: Can't have more than one preferred identifier for a type Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension | |
name | ΣI | 1..1 | string | Name for this naming system (computer friendly) |
status | ?!Σ | 1..1 | code | draft | active | retired | unknown PublicationStatus (Required) |
kind | Σ | 1..1 | code | codesystem | identifier | root NamingSystemType (Required) |
date | Σ | 1..1 | dateTime | Date last changed |
publisher | Σ | 0..1 | string | Name of the publisher (organization or individual) |
contact | Σ | 0..* | ContactDetail | Contact details for the publisher |
responsible | 0..1 | string | Who maintains system namespace? | |
type | 0..1 | CodeableConcept | e.g. driver, provider, patient, bank etc. IdentifierType (Extensible) | |
description | 0..1 | markdown | Natural language description of the naming system | |
useContext | Σ | 0..* | UsageContext | The context that the content is intended to support |
jurisdiction | Σ | 0..* | CodeableConcept | Intended jurisdiction for naming system (if applicable) Jurisdiction (Extensible) |
usage | 0..1 | string | How/where is it used | |
uniqueId | Σ | 1..* | BackboneElement | Unique identifiers used for system |
type | Σ | 1..1 | code | oid | uuid | uri | other NamingSystemIdentifierType (Required) |
value | Σ | 1..1 | string | The unique identifier |
preferred | 0..1 | boolean | Is this the id that should be used for this type | |
comment | 0..1 | string | Notes about identifier usage | |
period | 0..1 | Period | When is identifier valid? | |
Documentation for this format |
XML Template
<NamingSystem xmlns="http://hl7.org/fhir"> <!-- from Resource: id, meta, implicitRules, and language --> <!-- from DomainResource: text, contained, extension, and modifierExtension --> <name value="[string]"/><!-- 1..1 Name for this naming system (computer friendly) --> <status value="[code]"/><!-- 1..1 draft | active | retired | unknown --> <kind value="[code]"/><!-- 1..1 codesystem | identifier | root --> <date value="[dateTime]"/><!-- 1..1 Date last changed --> <publisher value="[string]"/><!-- 0..1 Name of the publisher (organization or individual) --> <contact><!-- 0..* ContactDetail Contact details for the publisher --></contact> <responsible value="[string]"/><!-- 0..1 Who maintains system namespace? --> <type><!-- 0..1 CodeableConcept e.g. driver, provider, patient, bank etc. --></type> <description value="[markdown]"/><!-- 0..1 Natural language description of the naming system --> <useContext><!-- 0..* UsageContext The context that the content is intended to support --></useContext> <jurisdiction><!-- 0..* CodeableConcept Intended jurisdiction for naming system (if applicable) --></jurisdiction> <usage value="[string]"/><!-- 0..1 How/where is it used --> <uniqueId> <!-- 1..* Unique identifiers used for system --> <type value="[code]"/><!-- 1..1 oid | uuid | uri | other --> <value value="[string]"/><!-- 1..1 The unique identifier --> <preferred value="[boolean]"/><!-- 0..1 Is this the id that should be used for this type --> <comment value="[string]"/><!-- 0..1 Notes about identifier usage --> <period><!-- 0..1 Period When is identifier valid? --></period> </uniqueId> </NamingSystem>
JSON Template
{ "resourceType" : "NamingSystem", // from Resource: id, meta, implicitRules, and language // from DomainResource: text, contained, extension, and modifierExtension "name" : "<string>", // C? R! Name for this naming system (computer friendly) "status" : "<code>", // R! draft | active | retired | unknown "kind" : "<code>", // R! codesystem | identifier | root "date" : "<dateTime>", // R! Date last changed "publisher" : "<string>", // Name of the publisher (organization or individual) "contact" : [{ ContactDetail }], // Contact details for the publisher "responsible" : "<string>", // Who maintains system namespace? "type" : { CodeableConcept }, // e.g. driver, provider, patient, bank etc. "description" : "<markdown>", // Natural language description of the naming system "useContext" : [{ UsageContext }], // The context that the content is intended to support "jurisdiction" : [{ CodeableConcept }], // Intended jurisdiction for naming system (if applicable) "usage" : "<string>", // How/where is it used "uniqueId" : [{ // R! Unique identifiers used for system "type" : "<code>", // R! oid | uuid | uri | other "value" : "<string>", // R! The unique identifier "preferred" : <boolean>, // Is this the id that should be used for this type "comment" : "<string>", // Notes about identifier usage "period" : { Period } // When is identifier valid? }] }
Turtle Template
@prefix fhir: <http://hl7.org/fhir/> . [ a fhir:NamingSystem; fhir:nodeRole fhir:treeRoot; # if this is the parser root # from Resource: .id, .meta, .implicitRules, and .language # from DomainResource: .text, .contained, .extension, and .modifierExtension fhir:NamingSystem.name [ string ]; # 1..1 Name for this naming system (computer friendly) fhir:NamingSystem.status [ code ]; # 1..1 draft | active | retired | unknown fhir:NamingSystem.kind [ code ]; # 1..1 codesystem | identifier | root fhir:NamingSystem.date [ dateTime ]; # 1..1 Date last changed fhir:NamingSystem.publisher [ string ]; # 0..1 Name of the publisher (organization or individual) fhir:NamingSystem.contact [ ContactDetail ], ... ; # 0..* Contact details for the publisher fhir:NamingSystem.responsible [ string ]; # 0..1 Who maintains system namespace? fhir:NamingSystem.type [ CodeableConcept ]; # 0..1 e.g. driver, provider, patient, bank etc. fhir:NamingSystem.description [ markdown ]; # 0..1 Natural language description of the naming system fhir:NamingSystem.useContext [ UsageContext ], ... ; # 0..* The context that the content is intended to support fhir:NamingSystem.jurisdiction [ CodeableConcept ], ... ; # 0..* Intended jurisdiction for naming system (if applicable) fhir:NamingSystem.usage [ string ]; # 0..1 How/where is it used fhir:NamingSystem.uniqueId [ # 1..* Unique identifiers used for system fhir:NamingSystem.uniqueId.type [ code ]; # 1..1 oid | uuid | uri | other fhir:NamingSystem.uniqueId.value [ string ]; # 1..1 The unique identifier fhir:NamingSystem.uniqueId.preferred [ boolean ]; # 0..1 Is this the id that should be used for this type fhir:NamingSystem.uniqueId.comment [ string ]; # 0..1 Notes about identifier usage fhir:NamingSystem.uniqueId.period [ Period ]; # 0..1 When is identifier valid? ], ...; ]
Changes since Release 3
NamingSystem | |
NamingSystem.replacedBy |
|
See the Full Difference for further information
This analysis is available as XML or JSON.
See R3 <--> R4 Conversion Maps (status = 3 tests that all execute ok. 3 fail round-trip testing and 3 r3 resources are invalid (0 errors).)
See the Profiles & Extensions and the alternate definitions: Master Definition XML + JSON, XML Schema/Schematron + JSON Schema, ShEx (for Turtle) + see the extensions & the dependency analysis
Path | Definition | Type | Reference |
---|---|---|---|
NamingSystem.status | The lifecycle status of an artifact. | Required | PublicationStatus |
NamingSystem.kind | Identifies the purpose of the naming system. | Required | NamingSystemType |
NamingSystem.type | A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. | Extensible | Identifier Type Codes |
NamingSystem.jurisdiction | Countries and regions within which this artifact is targeted for use. | Extensible | Jurisdiction ValueSet |
NamingSystem.uniqueId.type | Identifies the style of unique identifier used to identify a namespace. | Required | NamingSystemIdentifierType |
id | Level | Location | Description | Expression |
nsd-0 | Warning | (base) | Name should be usable as an identifier for the module by machine processing applications such as code generation | name.matches('[A-Z]([A-Za-z0-9_]){0,254}') |
nsd-1 | Rule | (base) | Root systems cannot have uuid identifiers | kind != 'root' or uniqueId.all(type != 'uuid') |
nsd-2 | Rule | (base) | Can't have more than one preferred identifier for a type | uniqueId.where(preferred = true).select(type).isDistinct() |
In some cases, the same code or identifier system might accidentally be created more than once in a registry, for example because someone failed to check
for an existing entry before adding a new one or knows the same concept with a different name. If this occurs, one of the system entries should be deleted
and the remaining entry should have its uniqueId
updated to include any identifiers present on the original entry (and possibly have its descriptive
information modified to include additional information from the duplicate entry).
Search parameters for this resource. The common parameters also apply. See Searching for more information about searching in REST, messaging, and services.
Name | Type | Description | Expression | In Common |
contact | string | Name of an individual to contact | NamingSystem.contact.name | |
context | token | A use context assigned to the naming system | (NamingSystem.useContext.value as CodeableConcept) | |
context-quantity | quantity | A quantity- or range-valued use context assigned to the naming system | (NamingSystem.useContext.value as Quantity) | (NamingSystem.useContext.value as Range) | |
context-type | token | A type of use context assigned to the naming system | NamingSystem.useContext.code | |
context-type-quantity | composite | A use context type and quantity- or range-based value assigned to the naming system | On NamingSystem.useContext: context-type: code context-quantity: value.as(Quantity) | value.as(Range) | |
context-type-value | composite | A use context type and value assigned to the naming system | On NamingSystem.useContext: context-type: code context: value.as(CodeableConcept) | |
date | date | The naming system publication date | NamingSystem.date | |
description | string | The description of the naming system | NamingSystem.description | |
id-type | token | oid | uuid | uri | other | NamingSystem.uniqueId.type | |
jurisdiction | token | Intended jurisdiction for the naming system | NamingSystem.jurisdiction | |
kind | token | codesystem | identifier | root | NamingSystem.kind | |
name | string | Computationally friendly name of the naming system | NamingSystem.name | |
period | date | When is identifier valid? | NamingSystem.uniqueId.period | |
publisher | string | Name of the publisher of the naming system | NamingSystem.publisher | |
responsible | string | Who maintains system namespace? | NamingSystem.responsible | |
status | token | The current status of the naming system | NamingSystem.status | |
telecom | token | Contact details for individual or organization | NamingSystem.contact.telecom | |
type | token | e.g. driver, provider, patient, bank etc. | NamingSystem.type | |
value | string | The unique identifier | NamingSystem.uniqueId.value |