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provides an extended view of the associations between release files following changes complete in July 2019 release of SNOMED CT
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The associations shown on the page are the results of changes that occured between July 2018 and July 2019. For documentation file associations before these changes please refer to Associations Between Release Files Prior to July 2018. |
. These changes enable SNOMED CT to use enhanced
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| t | description logic |
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features and resulted in a significant change to the way in which the
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| t | stated view |
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of
are represented. However the changes but did not significantly affect the structure and associations between the main component files shown
in in 
Detailed Notes of Release File Associations
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The most basic form of
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| t | relationship |
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is the
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| t | 116680003|is a| |
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relationship. This relationship states that one
is a subtype of another
. Each subtype concept is connected to its parent subtype(s) by relationships with the typeId
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| t | 116680003|is a| |
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| ShowFormat | inline |
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and this form the main SNOMED CT
In this
a
may have more than one parent
. The root of the
is
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| t | 138875005 |SNOMED CT Concept| |
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, which has a set of top level
each forming its own
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| t | sub-hierarchy. |
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|
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| t | Relationships |
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with typeid values that are subtypes of
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| t | 410662002 |Concept model attribute| |
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are referred to as attribute relationship and contribute to the formal definition of the source concept.
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