Hi thomas, See https://openehr.atlassian.net/browse/SPECPR-96 for discussion on this. Medication dose and quantities need both SI units and otherwise. The current restrictions make the modelling much clunkier than is necessary IMO. I'm not clear why strict adherence to SI is helpful in this context. Surely part of the point of a health orientated ref model is to make life easier and medication dose units are a critical type of quantity in this domain.
Ian On Wed, 18 May 2016 at 12:17, Thomas Beale <thomas.be...@openehr.org> wrote: > Hi Ian > > As far as I know, 'dose units' are not scientific units as such; they're > measures of discrete objects (including 'puffs' etc), which don't fit into > a clean grammar of scientific units, and trying to do so will just ruin the > former. > > We do of course need dose units, but we need a better way of modelling > them - my view is that they should not be treated as if they were 'units' > in the usual sense. > > The relevant SNOMED codes > <http://browser.ihtsdotools.org/?perspective=full&conceptId1=408102007&edition=en-edition&release=v20160131&server=http://browser.ihtsdotools.org/api/snomed&langRefset=900000000000509007> > seem to be these 'unit of product usage' codes, which is the correct kind > of description. > > What is the current problem/issue with modelling 'dose units' in > archetypes in fact? It looks to me like the current modelling approach > (similar to FHIR) represents these elements in a reasonable way. > - thomas > > > On 18/05/2016 10:22, Ian McNicoll wrote: > > Hi Grahame, > > For the use case raised, I agree, but there other considerations e.g. Dose > units and other non-UCUM code use - in the UK there is a desire to use > SNOMED terms for dose units. > > FHIR has human + code + system for quantity units, I think? > > Ian > > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical@lists.openehr.org > > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org
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