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A link between a terminology component and an information model artifact, such as class or attribute in a electronic health record or message.


  1. Terminology components include SNOMED CT expressions, reference sets and constraints.
  2. Information model artifacts include classes and attributes in reference models for electronic health records and communication specifications.
  3. Terminology binding can also be used to refer to the process of creating and persisting links between terminology components and information model artifacts.


  1. A set of coded values that may be applied to a particular attribute in an information model. The set may be expressed either explicitly (extensionally) or as a definitional constraint (intensionally).
  2. The association between a named attribute value in the information model and a specific coded value or expression.
  3. A rule that determines the way that a coded expression is constructed based on multiple attribute values in the information model.