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.
The concept in focus may have:
An ambiguous FSN, such as
- Simple ambiguity, where the FSN can be interpreted in different ways
- Classification extension included in the FSN, such as OS, NOS, NEC, and other
- Ambiguity between synonyms and FSN
- A misalignment between the FSN and the logical definition
General Process
Ambiguous FSN
Simple Ambiguity
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’
Classification Extension included in the FSN, such as OS, NOS, NEC, and other
Common classification phrases
<insert a description of the common classification phrases>
OS, NOS, NEC, other
Ambiguity between synonyms and FSN
Misalignment between FSN and Definition
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