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The IN operator is equivalent to multiple OR clauses and allows you to specify one or multiple values from your Code Clipboard.

Operation not allowed: an intersection of two single concepts will result in an empty code list. If you intend to union these concepts, use OR instead.
Steps to create intensional value set definition

This action will add to your current list of codes in your selected IN clause. If you need more advanced editing of this clause’s codes, choose Advanced Code Editing.

Warning: Identical clauses. To fix this, change the operators or the codes.
Warning: Include clause and Exclude clause are identical and will result in zero codes. To fix this, change the operators or the codes for either the Include or Exclude Codes clause.

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