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An attribute-value relationship associated with a concept code to indicate to users that it may be applied to refine the meaning of the code. The set of qualifying relationships provide syntactically correct values that can be presented to a user for postcoordination.


  • Following the introduction of the RF2 in 2012 qualifying relationships are no longer part of the standard distributed release.
  • The Machine Readable Concept Model provides a more comprehensive and flexible way to identify the full set of attributes and ranges that can be applied to refine concepts in particular domains.


  • Qualifier