At 9:05 pm +1100 6/12/05, Horst Herb wrote:
On Sun, 27 Nov 2005 12:01, Andrew McIntyre wrote:
At the risk of spamming...This is a dump of "Depressive Disorder" and
its children.
Quite interesting:
Postpartum depression (SNOMED-CT:***03003)
Major depressive disorder, single episode with postpartum onset
(SNOMED-CT:***22000)
Maternity blues (SNOMED-CT:***225001)
Mild postnatal depression (SNOMED-CT:***349002)
Severe postnatal depression (SNOMED-CT:***350002)
Recurrent major depressive disorder with postpartum onset (SNOMED-CT:***36009)
In SNOMED, you would have a minimum of 6 apparently unrelated codes to code
the concept of postnatal depression then. No hierarchical relationship? So if
I want to search for all women who suffered from postnatal depression, would
I have to query for code 03003 OR 22000 OR 225001 OR .... ?
If I have lets say a dozen apparently unrelated codes for individual common
concepts, and no good hierarchical way to browse & query through concepts as
opposed to individual codes, where does that lead me?
Horst
Usual practice is that codes should have no inherent meaning - their
primary function is uniqueness.
The structured hierarchy provides the relationships between concepts.
SNOMED data files provide machinery to describe its structure
("directed acyclical graph") in three data tables - concepts,
descriptions, relationships. I presume one has to discover the root
note concept to start with, or some documentation I don't yet have.
One needs a browser of some form - the one supplied runs on Windows.
I have also been provided with an alternative one that works with
Access. There are no open source SNOMED browsers that query SQL to my
knowledge (and I asked Peter Scott).
(I have been toying with writing one as a learning exercise but
haven't had time/inclination lately.)
Ian.
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Dr Ian R Cheong, BMedSc, FRACGP, GradDipCompSc, MBA(Exec)
Health Informatics Consultant, Brisbane, Australia
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