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Overview

The nature of the ambiguity will determine the steps to follow when inactivating an ambiguous concept. Follow the links below to see the steps relevant for the concept in focus.

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Ambiguous FSN 

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The diagram below illustrates the general process for resolving the nature of the ambiguity and performing the required inactivation. 


Gliffy Diagram
size1200
nameInactivation of Ambiguous concepts
pagePin23



Note

Resolving Subtypes

  • if all subtypes are sufficiently defined the only thing that needs going after inactivating the supertype is to reclassify
  • primitive subtypes should be manually assigned to a supertype if they can't be remodelled and made sufficiently defined

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Gliffy Diagram
nameAmbiguous Meaning
pagePin11

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Info
titleAmbiguous 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’

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Classification Extension included in the FSN, such as OS, NOS, NEC, and other

Gliffy Diagram
nameAmbiguity arising from classification concepts
pagePin8

Info
titleCommon classification phrases

<insert a description of the common classification phrases>

OS, NOS, NEC, other

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<Decision tree still to be created>

Gliffy Diagram
nameAmbiguity between synonyms and FSN
pagePin4

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<Decision tree still to be created>

Gliffy Diagram
nameMisalignment between FSN and Definition
pagePin7

Resolving Subtypes

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