Abstract
This chapter discusses the basics of SNOMED CT in terms of how it is structured from a logical and a conceptual point of view. It will generally be useful for clinicians, health IT engineers and health informatics experts alike.
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Notes
- 1.
It also includes non-human medical terms related to veterinary medicine that has been moved to an extension since January 2014 version international release of SNOMED CT.
- 2.
AKA acyclic digraph in computer science, this is further explained in the polyhierarchy section below.
- 3.
Adapted from Starter Guide, July 2014, IHTSDO , with permission.
- 4.
Vendor introduction to SNOMED CT, IHTSDO, used with permission.
- 5.
Dealt with in details in a later chapter.
- 6.
This list is alphabetically sorted; no other conclusions may be drawn from this arrangement.
- 7.
Editorial guide, IHTSDO, used with permission.
- 8.
A structured combination of one or more concept identifiers used to represent a clinical idea. Discussed in detail in a later chapter.
- 9.
Supertype is another variation that considers only the broader | is a | relationship as opposed to the subtype that considers only the more granular | is a | relationship.
- 10.
This type of relationship is called a meronomic relationship in ontological terms.
- 11.
Starter Guide, IHTSDO, July 2014, used with permission.
- 12.
These relationships are not used in RF2 format.
- 13.
Versions are discussed in a later chapter.
- 14.
Technical Implementation Guide , July 2014, IHTSDO.
- 15.
This is the termed as ‘qualifiers’ mentioned at the beginning of in the SNOMED CT Concept Handling Discussion section above.
- 16.
SNOMED CT Expression Constraint Language Specification and Guide, v 0.06, IHTSDO, used with permission.
- 17.
Tutorial: SNOMED CT concept model, Yongsheng Gao, Romin Khazai, Senior Terminologist, IHTSDO, SNOMED CT Implementation Showcase 2014, Amsterdam, the Netherlands, used with permission.
- 18.
It is interesting to note here that while studying to understand SNOMED CT, it is important to focus on the subtype and attribute relationships of a concept by following the parent-to-child relationships taking a top-down approach. However, when studying to understand the different types of views, one needs to focus on the supertype relationships of a concept, that is, by following the child-to-parent relationships taking a bottom-up approach. Expressions too need to be studied in a manner similar to views.
- 19.
SNOMED CT expressions, which are made up of concepts, can also be similarly viewed. The relevant details are available in a later chapter.
- 20.
These are explained in a later chapter.
- 21.
This forms the basis for normal forms, for which, refer to chapter on expressions.
- 22.
This list of synonyms is a SNOMED CT one.
- 23.
This is copied as is from the tool ClinClue.
- 24.
Extracted from ClinClue.
- 25.
Extracted from ClinClue.
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Bhattacharyya, S.B. (2016). SNOMED CT Basics. In: Introduction to SNOMED CT. Springer, Singapore. https://doi.org/10.1007/978-981-287-895-3_4
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DOI: https://doi.org/10.1007/978-981-287-895-3_4
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