Simple Map type Reference Sets

The Simple Map type Reference Set should be used for one-to-one mappings between SNOMED CT and alternative coding schemes. Although one-to-many mappings are allowed as well. It is possible to map to an external code system, using any of the imported terminologies or code systems as map sources.

To create a new Simple Map type Reference Set, right-click on the Simple Map type Reference Set grouping concept in the Reference Set View and select New Simple Map type Reference Set and specify:

Field	Description
Preferred term	A description for the new Map type Reference Set
Referenced component type	A SNOMED CT Concept or SNOMED CT Description
Map target type	The Code System of the target

Adding members

• Click the Add member button in the Reference Set Editor
• Drag and drop concepts from the SNOMED CT Navigator

• Use the SNOMED CT Navigator Context Menu options

  • Add concept to the active Reference Set or
  • Add concept and descendants to the active Reference Set or
  • Add concept descendants only to the active Reference Set
• Use the Search View Context Menu options

  • Add concept to the active Reference Set
  • Add all results to active Reference Set

These options are only enabled when a Reference Set Editor is open and activated.

In case of Map type Reference Sets, the New Member Wizard pops up requiring to specify a map target and other properties.

Mandatory properties to be specified in the New Simple Map 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
Module	The SNOMED CT module that contains this Reference Set member (primary module by default)

When adding multiple members at the same time, all will receive the same map target value specified in the Add New Member Wizard.

Simple Map type with Description Reference Set

This Reference Set type is a Simple Map type Reference Set, where the Map target description is also displayed.

To create a new Simple Map type Reference Set, right-click on the Simple Map type Reference Set grouping concept in the Reference Set View and select New Simple Map with map target description...

Members can be added the same way as to a Simple type Reference Set.