Re: Questions on Substance

The substance concept model was inspired from SNOMED CT definitions,
improved with RexNorm terminology.
See some exemples from SNOMED CT Concept  + Hierarchy tree.

MedicalEntity
      Substance
             Biological substance: SNOMED CT| 115668003 (e.g  )
                  Body substance: SNOMED CT| 91720002 (e.g Blood,
secretions, etc )
Infectious substances [NOT INCLUDED IN OUR PROPOSAL]
             Chemical: SNOMED CT| 441900009  (e.g carbocyclic acid)
             Dietary substance : SNOMED CT| 116273005  (e.g  )
             Drug or medicament: SNOMED CT| 410942007 (e.g )


On 10 June 2015 at 21:16, Mark Woon <markwoon@gmail.com> wrote:

>
> I'd like to get more details on how the various Substance types are meant
> to be used.
>
> 1) What is BodySubstance for?  Can someone provide an example of a
> BodySubstance?  And how it differs from BiologicalSubstance or
> AnatomicalEntity?
>
> 2) What is BiologicalSubstance for?  I'm wondering if this shouldn't be
> under ChemicalSubstance.  For example, is estrogen, taken for estrogen
> therapy, a BiologicalSubstance or Chemical Substance?  Or both depending on
> context?  What's the current logic behind the differentiation of
> BiologicalSubstance and ChemicalSubstance?
>
> It would really help to have examples for each of these types.
>
>
> Thanks,
> -Mark
>