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Value Set Definition
Value Set Definition with in the LexGrid logical model defines the contents of Value Set. The contents are concept codes defined in referencing Code System. Value Set can contain concept codes from one or more Code Systems.
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The following figure shows an overview of the value set definition logical model described in the following section.
Value Set Definition logical
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Model description
Value Set Definition
A definition of a given value set. A value set definition can be a simple description with no associated value set entries, or it can consist of one or more definitionEntries that resolve to an enumerated list of entityCodes when applied to one or more codingScheme versions.
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So we have a Code System "Automobiles" that contains concept codes Domestic Automaker and Automobile. Domestic Automaker contains Ford and General Motors. Autombile Automobile contains Truck, Car, and Tires.
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And when this definition is resolved, we will get back all the preferred designations.
Example 2
Using the same Code System "Automobiles" if you want to define the same value set definition to include all concept codes except "General Motors" and the children, it can be defined as follows:
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And when this definition is resolved, we will get back all the preferred designations.
Value Set Definition Resolution
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Visit LexEVS 6.0 Value Set GUI for detailed functionality and howto's about using Value Sets developer GUI tool
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