Reference Definition: A concept which is defined using an expression or structure in terms of two-or-more other concepts from within a terminology set. A postcoordinated concept does not have a predefined unique identifier within the given terminology set. Post-coordinated concepts can avoid the need to create large numbers of predefined concepts within the terminology set. However, many systems can only accept pre-coordinated concepts, or structural representations of postcoordinated concepts. (HL7 SAIF-IF ++)
Component of: Terminology
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