Als Identifier für Patienten sind verschiedene Merkmale möglich, z.B. Krankenversichertennummer, eine einrichtungsinterne ID ("PID"), Sozialversicherungsnummer, Führerscheinnummer, Teilnehmerkennungen an speziellen Forschungs- oder Versorgungsprogrammen usw.
Welche Identifier jeweils geeignet, verfügbar und zulässig sind, muss abhängig vom UseCase entschieden werden.
Hier wird nur eine Auswahl der in Deutschland üblichen Merkmale genauer beschrieben.
| Identifier | 0..* | Identifier | Element IdIdentifier An identifier intended for computation DefinitionAn identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers.
| |
| use | Σ ?! | 0..1 | codeBindingFixed Value | Element IdIdentifier.use usual | official | temp | secondary | old (If known) DefinitionThe purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.
usual
|
| type | Σ | 1..1 | CodeableConceptBinding | Element IdIdentifier.type Description of identifier DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.
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| coding | Σ | 1..* | Coding | Element IdIdentifier.type.coding Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value) Constraints
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| MR-Type | Σ | 1..1 | Coding | Element IdIdentifier.type.coding:MR-Type Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.
|
| system | Σ | 1..1 | uriFixed Value | Element IdIdentifier.type.coding:MR-Type.system Identity of the terminology system DefinitionThe identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.
http://terminology.hl7.org/CodeSystem/v2-0203
|
| version | Σ | 0..1 | string | Element IdIdentifier.type.coding:MR-Type.version Version of the system - if relevant DefinitionThe version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.
|
| code | Σ | 1..1 | codeFixed Value | Element IdIdentifier.type.coding:MR-Type.code Symbol in syntax defined by the system DefinitionA symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. Note that FHIR strings SHALL NOT exceed 1MB in size
MR
|
| display | Σ | 0..1 | string | Element IdIdentifier.type.coding:MR-Type.display Representation defined by the system DefinitionA representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Note that FHIR strings SHALL NOT exceed 1MB in size
|
| userSelected | Σ | 0..1 | boolean | Element IdIdentifier.type.coding:MR-Type.userSelected If this coding was chosen directly by the user DefinitionIndicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.
|
| text | Σ | 0..1 | string | Element IdIdentifier.type.text Plain text representation of the concept DefinitionA human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings.
|
| system | S Σ | 1..1 | uri | Element IdIdentifier.system The namespace for the identifier value DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive.
General http://www.acme.com/identifiers/patient Mappings
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| value | S Σ | 1..1 | string | Element IdIdentifier.value The value that is unique DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.
General 123456 Mappings
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| period | Σ | 0..1 | Period | Element IdIdentifier.period Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration.
|
| assigner | Σ | 0..1 | Reference(Organization) | Element IdIdentifier.assigner Organization that issued id (may be just text) DefinitionOrganization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.
|
Hinweise zur Nomenklatur organisationsinterner Identifier.system-URLs siehe lokale Namensräume
<identifier>
<type>
<coding>
<system value="http://terminology.hl7.org/CodeSystem/v2-0203" />
<code value="MR" />
</coding>
</type>
<system value="http://mein-krankenhaus.de/NamingSystem/patient-identifier" />
<value value="12345678" />
</identifier>
| Identifier | 0..* | Identifier | Element IdIdentifier An identifier intended for computation DefinitionAn identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers.
| |
| use | Σ ?! | 0..1 | codeBindingFixed Value | Element IdIdentifier.use usual | official | temp | secondary | old (If known) DefinitionThe purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.
official
|
| type | Σ | 0..1 | CodeableConceptBinding | Element IdIdentifier.type Description of identifier DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.
|
| coding | Σ | 1..* | Coding | Element IdIdentifier.type.coding Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value) Constraints
|
| GKV-Type | Σ | 1..1 | Coding | Element IdIdentifier.type.coding:GKV-Type Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.
|
| system | Σ | 1..1 | uriFixed Value | Element IdIdentifier.type.coding:GKV-Type.system Identity of the terminology system DefinitionThe identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.
http://fhir.de/CodeSystem/identifier-type-de-basis
|
| version | Σ | 0..1 | string | Element IdIdentifier.type.coding:GKV-Type.version Version of the system - if relevant DefinitionThe version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.
|
| code | Σ | 1..1 | codeFixed Value | Element IdIdentifier.type.coding:GKV-Type.code Symbol in syntax defined by the system DefinitionA symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. Note that FHIR strings SHALL NOT exceed 1MB in size
GKV
|
| display | Σ | 0..1 | string | Element IdIdentifier.type.coding:GKV-Type.display Representation defined by the system DefinitionA representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Note that FHIR strings SHALL NOT exceed 1MB in size
|
| userSelected | Σ | 0..1 | boolean | Element IdIdentifier.type.coding:GKV-Type.userSelected If this coding was chosen directly by the user DefinitionIndicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.
|
| text | Σ | 0..1 | string | Element IdIdentifier.type.text Plain text representation of the concept DefinitionA human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings.
|
| system | S Σ | 1..1 | uriFixed Value | Element IdIdentifier.system The namespace for the identifier value DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive.
http://fhir.de/NamingSystem/gkv/kvid-10
|
| value | S Σ | 1..1 | string | Element IdIdentifier.value The value that is unique DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.
General 123456 Mappings
|
| period | Σ | 0..1 | Period | Element IdIdentifier.period Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration.
|
| assigner | Σ | 0..1 | Reference(Organization) | Element IdIdentifier.assigner Organization that issued id (may be just text) DefinitionOrganization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.
|
<identifier>
<system value="http://fhir.de/NamingSystem/gkv/kvid-10" />
<value value="G995030567" />
</identifier>
<identifier>
<type>
<coding>
<system value="http://fhir.de/CodeSystem/identifier-type-de-basis"/>
<code value="GKV"/>
</coding>
</type>
<system value="http://fhir.de/NamingSystem/gkv/kvid-10" />
<value value="G995030567" />
</identifier>
Die Angabe von Identifier.type ist optional, da die Versichertennummer als solche anhand der einheitlichen Namespace-URL "http://fhir.de/NamingSystem/gkv/kvid-10" in Identifier.system zu erkennen ist.
Die Angabe des Types kann jedoch hilfreich sein, wenn sowohl gesetzliche als auch private Versichertennummern verwaltet werden müssen, da letztere über keinen einheitlichen Namensraum verfügen und daher ausschließlich am Typ als PKV-Nummern erkennbar sind.
Bei privaten Versicherungen ist die NamingSystem-URL in den meisten Fällen nicht bekannt oder nicht definiert. Da jede Versicherung ihren eigenen Nummernkreis verwendet, sind Versichertennummern ohne Angabe der Versicherung jedoch nicht eindeutig.
In diesem Fall ist das Element Identifier.assigner zu verwenden, um mindestens den Namen, idealerweise zusätzlich die IK-Nummer der PKV anzugeben.
Ohne Angabe einer NamingSystem-URL in Identifier.system ist es jedoch nicht möglich, einen Token-Suchparameter zu definieren, der zuverlässig eindeutige Ergebnisse liefert.
Falls dies in einem konkreten Szenario zu Problemen führt, bitten wir um Feedback im FHIR-Chat
| Identifier | 0..* | Identifier | Element IdIdentifier An identifier intended for computation DefinitionAn identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers.
| |
| use | Σ ?! | 0..1 | codeBindingFixed Value | Element IdIdentifier.use usual | official | temp | secondary | old (If known) DefinitionThe purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.
secondary
|
| type | Σ | 1..1 | CodeableConceptBinding | Element IdIdentifier.type Description of identifier DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.
|
| coding | Σ | 1..* | Coding | Element IdIdentifier.type.coding Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true. Unordered, Open, by system(Value) Constraints
|
| PKV-Type | Σ | 1..1 | Coding | Element IdIdentifier.type.coding:PKV-Type Code defined by a terminology system DefinitionA reference to a code defined by a terminology system. Allows for alternative encodings within a code system, and translations to other code systems. Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.
|
| system | Σ | 1..1 | uriFixed Value | Element IdIdentifier.type.coding:PKV-Type.system Identity of the terminology system DefinitionThe identification of the code system that defines the meaning of the symbol in the code. Need to be unambiguous about the source of the definition of the symbol. The URI may be an OID (urn:oid:...) or a UUID (urn:uuid:...). OIDs and UUIDs SHALL be references to the HL7 OID registry. Otherwise, the URI should come from HL7's list of FHIR defined special URIs or it should reference to some definition that establishes the system clearly and unambiguously.
http://fhir.de/CodeSystem/identifier-type-de-basis
|
| version | Σ | 0..1 | string | Element IdIdentifier.type.coding:PKV-Type.version Version of the system - if relevant DefinitionThe version of the code system which was used when choosing this code. Note that a well-maintained code system does not need the version reported, because the meaning of codes is consistent across versions. However this cannot consistently be assured, and when the meaning is not guaranteed to be consistent, the version SHOULD be exchanged. Where the terminology does not clearly define what string should be used to identify code system versions, the recommendation is to use the date (expressed in FHIR date format) on which that version was officially published as the version date.
|
| code | Σ | 1..1 | codeFixed Value | Element IdIdentifier.type.coding:PKV-Type.code Symbol in syntax defined by the system DefinitionA symbol in syntax defined by the system. The symbol may be a predefined code or an expression in a syntax defined by the coding system (e.g. post-coordination). Need to refer to a particular code in the system. Note that FHIR strings SHALL NOT exceed 1MB in size
PKV
|
| display | Σ | 0..1 | string | Element IdIdentifier.type.coding:PKV-Type.display Representation defined by the system DefinitionA representation of the meaning of the code in the system, following the rules of the system. Need to be able to carry a human-readable meaning of the code for readers that do not know the system. Note that FHIR strings SHALL NOT exceed 1MB in size
|
| userSelected | Σ | 0..1 | boolean | Element IdIdentifier.type.coding:PKV-Type.userSelected If this coding was chosen directly by the user DefinitionIndicates that this coding was chosen by a user directly - e.g. off a pick list of available items (codes or displays). This has been identified as a clinical safety criterium - that this exact system/code pair was chosen explicitly, rather than inferred by the system based on some rules or language processing. Amongst a set of alternatives, a directly chosen code is the most appropriate starting point for new translations. There is some ambiguity about what exactly 'directly chosen' implies, and trading partner agreement may be needed to clarify the use of this element and its consequences more completely.
|
| text | Σ | 0..1 | string | Element IdIdentifier.type.text Plain text representation of the concept DefinitionA human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user. The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source. Very often the text is the same as a displayName of one of the codings.
|
| system | S Σ | 0..1 | uri | Element IdIdentifier.system The namespace for the identifier value DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive.
General http://www.acme.com/identifiers/patient Mappings
|
| value | S Σ | 1..1 | string | Element IdIdentifier.value The value that is unique DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.
General 123456 Mappings
|
| period | Σ | 0..1 | Period | Element IdIdentifier.period Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration.
|
| assigner | S Σ | 1..1 | Reference(Organization) | Element IdIdentifier.assigner Organization that issued id (may be just text) DefinitionOrganization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.
|
| reference | Σ | 0..1 | string | Element IdIdentifier.assigner.reference Literal reference, Relative, internal or absolute URL DefinitionA reference to a location at which the other resource is found. The reference may be a relative reference, in which case it is relative to the service base URL, or an absolute URL that resolves to the location where the resource is found. The reference may be version specific or not. If the reference is not to a FHIR RESTful server, then it should be assumed to be version specific. Internal fragment references (start with '#') refer to contained resources. Using absolute URLs provides a stable scalable approach suitable for a cloud/web context, while using relative/logical references provides a flexible approach suitable for use when trading across closed eco-system boundaries. Absolute URLs do not need to point to a FHIR RESTful server, though this is the preferred approach. If the URL conforms to the structure "/[type]/[id]" then it should be assumed that the reference is to a FHIR RESTful server.
|
| type | Σ | 0..1 | uriBinding | Element IdIdentifier.assigner.type Type the reference refers to (e.g. "Patient") DefinitionThe expected type of the target of the reference. If both Reference.type and Reference.reference are populated and Reference.reference is a FHIR URL, both SHALL be consistent. The type is the Canonical URL of Resource Definition that is the type this reference refers to. References are URLs that are relative to http://hl7.org/fhir/StructureDefinition/ e.g. "Patient" is a reference to http://hl7.org/fhir/StructureDefinition/Patient. Absolute URLs are only allowed for logical models (and can only be used in references in logical models, not resources). This element is used to indicate the type of the target of the reference. This may be used which ever of the other elements are populated (or not). In some cases, the type of the target may be determined by inspection of the reference (e.g. a RESTful URL) or by resolving the target of the reference; if both the type and a reference is provided, the reference SHALL resolve to a resource of the same type as that specified.
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| identifier | Σ | 0..1 | Identifier | Element IdIdentifier.assigner.identifier Logical reference, when literal reference is not known DefinitionAn identifier for the target resource. This is used when there is no way to reference the other resource directly, either because the entity it represents is not available through a FHIR server, or because there is no way for the author of the resource to convert a known identifier to an actual location. There is no requirement that a Reference.identifier point to something that is actually exposed as a FHIR instance, but it SHALL point to a business concept that would be expected to be exposed as a FHIR instance, and that instance would need to be of a FHIR resource type allowed by the reference. When an identifier is provided in place of a reference, any system processing the reference will only be able to resolve the identifier to a reference if it understands the business context in which the identifier is used. Sometimes this is global (e.g. a national identifier) but often it is not. For this reason, none of the useful mechanisms described for working with references (e.g. chaining, includes) are possible, nor should servers be expected to be able resolve the reference. Servers may accept an identifier based reference untouched, resolve it, and/or reject it - see CapabilityStatement.rest.resource.referencePolicy. When both an identifier and a literal reference are provided, the literal reference is preferred. Applications processing the resource are allowed - but not required - to check that the identifier matches the literal reference Applications converting a logical reference to a literal reference may choose to leave the logical reference present, or remove it. Reference is intended to point to a structure that can potentially be expressed as a FHIR resource, though there is no need for it to exist as an actual FHIR resource instance - except in as much as an application wishes to actual find the target of the reference. The content referred to be the identifier must meet the logical constraints implied by any limitations on what resource types are permitted for the reference. For example, it would not be legitimate to send the identifier for a drug prescription if the type were Reference(Observation|DiagnosticReport). One of the use-cases for Reference.identifier is the situation where no FHIR representation exists (where the type is Reference (Any).
|
| use | Σ ?! | 0..1 | codeBinding | Element IdIdentifier.assigner.identifier.use usual | official | temp | secondary | old (If known) DefinitionThe purpose of this identifier. Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.
|
| type | Σ | 0..1 | CodeableConceptBinding | Element IdIdentifier.assigner.identifier.type Description of identifier DefinitionA coded type for the identifier that can be used to determine which identifier to use for a specific purpose. Allows users to make use of identifiers when the identifier system is not known. This element deals only with general categories of identifiers. It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage. Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.
|
| system | Σ | 1..1 | uriFixed Value | Element IdIdentifier.assigner.identifier.system The namespace for the identifier value DefinitionEstablishes the namespace for the value - that is, a URL that describes a set values that are unique. There are many sets of identifiers. To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers. Identifier.system is always case sensitive.
http://fhir.de/NamingSystem/arge-ik/iknr
|
| value | Σ | 1..1 | string | Element IdIdentifier.assigner.identifier.value The value that is unique DefinitionThe portion of the identifier typically relevant to the user and which is unique within the context of the system. If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986. The value's primary purpose is computational mapping. As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.) A value formatted for human display can be conveyed using the Rendered Value extension. Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.
General 123456 Mappings
|
| period | Σ | 0..1 | Period | Element IdIdentifier.assigner.identifier.period Time period when id is/was valid for use DefinitionTime period during which identifier is/was valid for use. A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times"). Period is not used for a duration (a measure of elapsed time). See Duration.
|
| assigner | Σ | 0..1 | Reference(Organization) | Element IdIdentifier.assigner.identifier.assigner Organization that issued id (may be just text) DefinitionOrganization that issued/manages the identifier. The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.
|
| display | S Σ | 1..1 | string | Element IdIdentifier.assigner.display Text alternative for the resource DefinitionPlain text narrative that identifies the resource in addition to the resource reference. This is generally not the same as the Resource.text of the referenced resource. The purpose is to identify what's being referenced, not to fully describe it.
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<identifier>
<type>
<coding>
<system value="http://fhir.de/CodeSystem/identifier-type-de-basis"/>
<code value="PKV"/>
</coding>
</type>
<value value="123456" />
<assigner>
<identifier value="http://fhir.de/NamingSystem/arge-ik/iknr"/>
<value value="168140346"/>
<display value="Allianz"/>
</assigner>
</identifier>