SNOMED CT Editorial Guide

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  • A second parent (in addition to X (substance)), that indicates the concept is an ionized substance should be modeled. 
    • Use a descendant of 86355000 |Electrolyte (substance)| as the additional parent.  (86355000 |Electrolyte (substance)| and its children are used in LOINC term expression associations.)
  • Non-Ionized/Non-Ionised substances should not be created.

Modeling (stated view)

Parent concepts

Most distal appropriate descendant of  86355000 | Electrolyte (substance)|

  • Exceptions: none

Most distal appropriate descendant of 312413002 |Substance categorized structurally (substance)|

Exceptions: none

Semantic tag

(substance)

Definition status

900000000000074008 |Necessary but not sufficient concept definition status (core metadata concept)|

  • Exceptions: none

Attribute

none

Naming Guidelines

FSN

Pattern:

  • X ion (substance) 
Example:

For example,

      • Ferric ion (substance)

Preferred Term

Pattern:

  • X ion
Example:

For example,

      • Ferric ion

Synonyms

Pattern:"Ionized X" and "X electrolyte". 
Add "Ionised X" as GB synonym.

Example:

For example,

      • Ionised fluorine
      • Ionized fluorine
      • Fluoride electrolyte
Where an element can exist with more than one level of oxidation, for example iron can exist in either the ferric (Fe3+) or ferrous (Fe 2+) ionization states, the synonyms "Ionised X" and "Ionized X" should not be added since they are ambiguous.

Exemplar

The following illustrates the Stated and Inferred view

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