Throughout SNOMED CT the persistent interrogator (am I alone?) can find numerous duplicate concepts and (sometimes related) hierarchy problems (usually of omission or wrong hierarchy) anywhere they care to look.
Throughout SNOMED CT the persistent interrogator
can find numerous duplicate concepts and hierarchy problems anywhere they care to look.
Today I found and examined the 'Intestinal intussusception' hierarchy shown below: (Occasionally I show the Read 2 code(s) first, then SNOMED CT code(s), then the concept term(s), and finally the CTV3 code(s))
Concepts (indented) missing from the SNOMED CT Intestinal intussusception hierarchy are shown with their parents below:
Now for the duplicate.
In the SCT hierarchy, a child of :
J500.|J500z|49723003|Intussusception of intestine|J500.|J500z
The definition of enteric is: 'Relating to the intestine'.
So 'Enteric intussusception' is identical to' Intestinal intussusception'
I represent this in my CORRECTED VERSION as:
J500.|J500z|J5002|49723003|197048002|Intussusception of intestine; Enteric intussusception|J500.|J500z|J5002
accommodating both terms.
Many duplicates should be apparent to IHTSDO, as examination of the other (i.e. 'non Is a') or
'other defining relationships' will often show exactly the same set of relationships.
'Intestinal structure', 'Intussusception' and 'Obstruction'. Only the 'Is a' is different showing the different hierarchy making Enteric intussusception a child of itself (!?).
ENTERIC Focus (source) concept |Relationship type |Related (destination) concept Enteric intussusception |Is a |Intussusception of intestine Enteric intussusception |Finding site |Intestinal structure (body structure) Enteric intussusception |Associated morphology |Intussusception (morphologic abnormality) Enteric intussusception |Associated morphology |Obstruction (morphologic abnormality)
INTESTINAL Focus (source) concept |Relationship type |Related (destination) concept Intussusception of intestine |Is a |Mechanical ileus Intussusception of intestine |Finding site |Intestinal structure (body structure) Intussusception of intestine |Associated morphology |Intussusception (morphologic abnormality) Intussusception of intestine |Associated morphology |Obstruction (morphologic abnormality)
To eliminate these problems I propose the addition of: