SNOMED CT Editorial Guide

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Modeling 

Parent concept

Most distal appropriate descendant of 105590001 |Substance (substance)|

Semantic tag

(substance)

Definition status

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

Attribute

738774007 |Is modification of (attribute)| relationship to the unspecified substance

726542003 |Has disposition (attribute)| as appropriate

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    • Ferrous oxalate dihydrate (substance)
    • Caffeine hydrate (substance)
    • Zinc sulfate heptahydrate (substance)

Naming Guidelines

FSN

Pattern:

  • X hydrate (substance)
  • X dihydrate (substance)
  • X monohydrate (substance)

  • Example:

  • Copper sulfate pentahydrate (substance)

Preferred Term

Pattern:

    • X hydrate
    • X dihydrate
    • X monohydrate

Example:

  • Copper sulfate pentahydrate

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Anhydrous compounds

Anhydrous compounds have a an IS MODIFICATION OF (attribute) relationship to the unspecified substance, i.e. where the level hydration is not specified.

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    • Sodium carbonate anhydrous (substance)
    • Theophylline anhydrous (substance)

Naming Guidelines

FSN

Pattern:

  • X anhydrous (substance)

Example:

  • Theophylline anhydrous (substance)

Preferred Term

Pattern:

  • X anhydrous

Example:

  • Theophylline anhydrous

Synonyms

Pattern: Anhydrous X

Exemplar

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