HELP-PROMPT: Answer must be 1-30 characters in length.
DESCRIPTION: The purpose of this field is to store a designation ID in the Lexicon. Designation is a word that terminologists use to encompass concept name, preferred term, expression, code text, synonyms, etc. In some systems such
as SNOMED CT as well as the concept having a code (the SNOMED CT code), the individual designations (terms) belong to the concept each have their own codes (designation identifiers).