terminology binding that represents the set of permitted values that can be used to populate a coded data item.


  • value set binding can be defined using individual rules. For example concepts that are: in a list of included concept identifiers, members of a specified reference set or subtypes of a specified concept. 

  • Expression constraints provide a more flexible way to represent value set bindings as they are able to represent and combine a range of different rules to determine the set of concepts or expressions that are part of a value set.


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