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Ambiguous FSN 

Ambiguous Meaning


Ambiguous concepts with a single target

A single target may be justified in the following situations:

  • If one of the meanings of the ambiguous concept is not clinically useful

  • The FSN represents a classification concept, such as ‘other’, ‘NOS’


Misalignment between FSN and Definition 

Misalignment between FSN and Definition

Ambiguity arising from classification concepts (OS, NOS, NEC, other)

Ambiguity arising from classification concepts

Common classification phrases

<insert a description of the common classification phrases>

OS, NOS, NEC, other



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