7.19.1
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Local Code Systems
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Error Handling
Extended Map type Reference Sets
Extended Map type Reference Sets are very similar to Complex Map type Reference Sets, but also allow specifying map categories for an associated Reference Set member.
To create an Extended Map type Reference Set, right-click on the corresponding Reference Set type in the Reference Set View and select
New Extended Map type Reference Set from the Context Menu.
Only SNOMED CT Concept to ICD-10 Class mappings are possible.
Members can be added the usual way. Correlation and Map category fields are mandatory to fill.
Mandatory properties to be specified in the New Member Wizard:
Property
Description
Referenced component
The SNOMED CT component that is mapped to the other terminology or Code System
Map target
The target code in the target terminology, classification, or Code System
Map group
A value grouping a set of Complex Map records from which one may be selected as a target code
Map priority
The order in which Complex Map records should be checked within a Map Group
Correlation
The correlation between the SNOMED CT component and the target code
Map category
The SNOMED CT component in the metadata hierarchy which represents the Map Category for the associated map member
Module
The SNOMED CT module that contains this Reference Set member (primary module by default)
Other properties:
Property
Description
Map rule
A machine-readable rule, (evaluating to either true or false at run-time) that indicates whether this map record should be selected within its Map Group
Map advice
Human-readable advice, that may be used to give an end-user advice on selection of the appropriate target code from the alternatives presented within the group
In case of ICD-10, the individual category values are subtypes of 447634004|ICD-10 Map category value|.
For further information about Extended Map type Reference Set, refer to the SNOMED International Technical Implementation Guide's Complex and Extended map Reference Sets.
Some of the properties can be modified afterward from the Extended Map type Reference Set Editor. In-cell editing is allowed in the specified member fields such as groupNumber, mapPriority, mapAdvice, mapRule, correlation, mapCategory columns when authoring Extended Map type Reference Sets.
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