| Coding | | 0..* | Coding | Element IdShort description A reference to a code defined by a terminology system Definition A reference to a code defined by a terminology system.
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.
Coding Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
- rim:n/a
- v2:CE/CNE/CWE subset one of the sets of component 1-3 or 4-6
- rim:CV
- orim:fhir:Coding rdfs:subClassOf dt:CDCoding
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| system | Σ | 1..1 | uriFixed Value | Element IdShort description Canonische ValueSet URL für OPS Definition The 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.
uri Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
http://fhir.de/CodeSystem/dimdi/ops Mappings- rim:n/a
- v2:C*E.3
- rim:./codeSystem
- orim:fhir:Coding.system rdfs:subPropertyOf dt:CDCoding.codeSystem
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| version | Σ | 1..1 | string | Element IdShort description Die Jahresversion des OPS Kataloges. Angegeben wird immer die vierstellige Jahreszahl (z.B. "2017") Definition Bie Verwendung von OPS ist die Angabe der Version zwingend erforderlich.
Hierdurch wird der Tatsache Rechnung getragen, dass jede der jährlich neu erscheinenden Fassung von OPS ein neues Codesystem darstellt.
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.
string Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
- rim:n/a
- v2:C*E.7
- rim:./codeSystemVersion
- orim:fhir:Coding.version rdfs:subPropertyOf dt:CDCoding.codeSystemVersion
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| code | Σ | 1..1 | code | Element IdShort description Der OPS-Code Definition A 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
code Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
Postkoordinierter Kreuz-Stern-CodeA12.3+ B45.6*
Mappings- rim:n/a
- v2:C*E.1
- rim:./code
- orim:fhir:Coding.code rdfs:subPropertyOf dt:CDCoding.code
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| display | Σ | 0..1 | string | Element IdShort description Representation defined by the system Definition A 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
string Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
- rim:n/a
- v2:C*E.2 - but note this is not well followed
- rim:CV.displayName
- orim:fhir:Coding.display rdfs:subPropertyOf dt:CDCoding.displayName
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| userSelected | Σ | 0..1 | boolean | Element IdShort description If this coding was chosen directly by the user Definition Indicates 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.
boolean Constraints- ele-1:All FHIR elements must have a @value or children
hasValue() or (children().count() > id.count())
- rim:n/a
- v2:Sometimes implied by being first
- rim:CD.codingRationale
- orim:fhir:Coding.userSelected fhir:mapsTo dt:CDCoding.codingRationale. fhir:Coding.userSelected fhir:hasMap fhir:Coding.userSelected.map. fhir:Coding.userSelected.map a fhir:Map; fhir:target dt:CDCoding.codingRationale. fhir:Coding.userSelected\#true a [ fhir:source "true"; fhir:target dt:CDCoding.codingRationale\#O ]
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