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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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General Process

Gliffy Diagram
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nameInactivation of Ambiguous concepts
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Ambiguous FSN 

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


Gliffy Diagram
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nameAmbiguity arising from classification Inactivation of Ambiguous concepts
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Info
titleCommon classification phrases

<insert a description of the common classification phrases>

OS, NOS, NEC, other

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Note

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Gliffy Diagram
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nameAmbiguity between synonyms and FSN
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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