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- All concepts will have at least two (2) descriptions: one (1) FSN ( Fully Specified Name (FSN) and one (1) PS ( Preferred Synonym (PS);
- The Fully Specified Name FSN is always unique in the terminology, while other descriptions may not be unique except for immunizations;
- Additional synonyms may be added to concepts;
- The format of synonyms and addition of synonyms is often driven by the domain requirements;
- Note that all All synonyms of Immunization immunization concepts are unique . This is important in order to ensure patient safety.
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- Is intended to be unambiguous and unique in SNOMED CT®;
- It is recommended that the FSN NOT be used at the user interface;
- US English spelling is used in Canada. e.g. milliliter instead of millilitre;
- Restrictions in punctuation may restrict how terms are described;
- Refer to the domain specific guidelines for specific guidance.
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- The PS is intended to be used at the user interface;
- The PS used is familiar to domain stakeholders;
- US English spelling is used . (e.g.: pediatric as opposed to paediatric);
- Restrictions in punctuation may restrict how terms are described;
- Refer to the domain specific guidelines for specific guidance;
- Restrictions in field length may require adjustment of wording;
- With the exception of Immunizationimmunizations, the PS is not always unique.
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