Re: SNOMED CT constraint syntax - for querying instances or terminology?

This is indeed the intent: the language has been design to cater exactly for this extension. I can't say that there's any international content about to come out with this addition numeric modelling, but Australia has been publishing this kind of content in the Australian Medicines Terminology

Re: SNOMED CT constraint syntax - for querying instances or terminology?

Hello, At this point I think that is the only option. I want to believe that the SNOMED CT Expression Constraint Language has been designed with a future evolution of SNOMED CT in mind, where concepts will be enriched with numerical values. For example, SNOMED CT now contains a set of Virtual Medi

Re: SNOMED CT constraint syntax - for querying instances or terminology?

I am following this discussion with great interest, just wanted you and Michael to know, just in case you would want to stop it or have it private, which I would regret. Bert On 30-09-15 09:20, Thomas Beale wrote: ok - so the query would be applied to instances in a drug database (each instan

Re: SNOMED CT constraint syntax - for querying instances or terminology?

On 30/09/2015 07:51, michael.law...@csiro.au wrote: Imagine instead the example was using the corresponding AMT concepts (since snomed pure doesn't have any concrete domain modelling -- I.e. numeric values). Then the focus concept would be the AMT amoxycillin Medicinal Product concept 2141501

Re: SNOMED CT constraint syntax - for querying instances or terminology?

Imagine instead the example was using the corresponding AMT concepts (since snomed pure doesn't have any concrete domain modelling -- I.e. numeric values). Then the focus concept would be the AMT amoxycillin Medicinal Product concept 2141501136100 and the constraint matches would be MPUUs an

Re: SNOMED CT constraint syntax - for querying instances or terminology?

Hi Michael, in that case, to what information base or DB could the amoxycillin query be applied? What is it for? thanks - thomas On 29/09/2015 23:19, michael.law...@csiro.au wrote: Hi Thomas, These constraints are essentially queries over the snomed definitional content (ie the Relations

Re: SNOMED CT constraint syntax - for querying instances or terminology?

Hi Thomas, These constraints are essentially queries over the snomed definitional content (ie the Relationships), not queries over external data (ie not EHRs). The intent is to identify sets of snomed concepts that satisfy the constraint criteria. These sets could be subsequently used to join

SNOMED CT constraint syntax - for querying instances or terminology?

The latest version of the SNOMED CT constraint language proposes expressions like the following: Section 6.3 To find those capsules that have a strength between 500 and 800 mg (inclusive), the following expression constraint may be used: < 2