More generic reference model

GF gfrer at
Fri Sep 2 03:41:47 EDT 2016

It is the generally accepted by CIMI  that in name/value pairs:
- LOINC is used for the question part
- SNOMED for the Question

With respect to the co-use of both coding systems and the needed harmonisation between the two:
in the USA they started SOLOR (SnOmed LOinc, Rxnorm)
CIMI will rely on SOLOR.

This SOLOR might fulfill the needs of countries to extend SNOMED to be able to bind all items in a structure to a reference coding system..


> On 1 sep. 2016, at 10:17, Diego Boscá <yampeku at> wrote:
> Main problem I see there is that Snomed focus usually differs of what
> we look in the bindings, which makes binding process quite difficult
> (e.g. binding a blood pressure archetype entry with the blood pressure
> snomed ct term is wrong. It should be bound to something in the lines
> of "report about blood pressure").
> In the end, you can see the different classes of openEHR entries as
> generic entries with a (kind of) meaning provided by openEHR. Think
> something in the lines of 'openEHR::OBSERVATION'. I believe that
> ISO13606 part 3 proposes something in the lines of this to deal with
> different RM semantics
> By the way, there are countries that are proposing a national
> extension to Snomed to add that kind of "report about..." terms. This
> way they assure that the meaning of the archetype and the term is
> exactly the same.
> Regards
> 2016-09-01 9:54 GMT+02:00 Bert Verhees <bert.verhees at>:
>> Hi,
>> I am just wondering if there are some opinions about this.
>> Do we still need the not so generic reference model which OpenEhr has, with
>> archetypes denoting Observation, Evaluation etc?
>> Wouldn't a more  generic reference model, like ISO13606 be sufficient, when
>> the terminology, worldwide, is moving to SNOMED-CT?
>> Because the SNOMED-concepts already indicate in which hierarchy a data-item
>> belongs (clinical finding, procedure, body structure, etc), and with much
>> more detail then the OpenEHR reference model.
>> When using SNOMED in OpenEHR there will be redundant information created,
>> and to not create redundant information is one of the main golden rules in
>> system design.
>> I think the reference model design needs reconsideration. It comes from a
>> time when there was no SNOMED-CT.
>> Thanks for any thoughts.
>> Bert
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