Purpose

The 

1. Some of the 

   Gloss
   t other-codes t: other-codes

    cannot be mapped to an individual SNOMED CT 

   Gloss
   t concept

   .
2. Licensing conditions (or other considerations) prevent addition of new SNOMED CT concepts to represent the same meaning as the 

   Gloss
   t other-codes t: other-codes

   .
3. The 

   Gloss
   t other-codes t: other-codes

    can be logically defined using the 

   Gloss
   t SNOMED concept model

    to represent the same meaning 

   Gloss
   t (sufficiently defined)

    or a similar though less specific meaning 

   Gloss
   t (primitive)

   .
4. Other requirements similar for those applicable to mapping may also apply including:
   1. An indication of the degree of correlation between the  

      Gloss
      t other-code t: other-codes

       and the SNOMED CT expression.
   2. An indication of whether the 

      Gloss
      t other-code t: other-codes

       was created before any single concept representation of that meaning in SNOMED CT or whether the single concept representation in SNOMED CT predated the creation of the association.

Data Structure

The general approach to the above requirements is to associate each of the 

Code to expression type reference set - Data Structure

refs