All
I have a modelling issue where I'm trying to bind a single data point or an 
archetype to a choice of terminology & code systems.

The actual use case is that I'm modelling a new-born hips examination, and the 
result may be given as either a SNOMED CT concept, a Read 2 code or a CTV3 code 
(for those unfamiliar with Read 2 & CTV3, they are code systems used (mostly) 
in primary care in the UK). In the actual instance, each code/concept will have 
a code system identifier to distinguish the actual code system used

For example, a result of "no abnormalities and no risk factors" can be 
represented as either

SNOMED CT

Read2

CTV3

ID

FSN

ID

Term

ID

Term

985701000000100

Newborn and Infant Physical Examination Screening Programme, hip examination 
done, no abnormality and no risk factor

9OqJ1

NIPE hip, no abnor&no rsk fctr

XadAN

NIPE hip, no abnor&no rsk fctr


In the modelling tools I see you can have a choice, but I can't see how the 
choice supports multiple terminologies. I see that it does support a choice of 
a terminology & Free text.

Is there a "standard" way of saying a data point may be represented by one of 3 
terminologies/codes systems? Or is this something the tooling deliberately 
stops you doing?

Thanks in advance

Dave Barnet
Interoperability Lead
Interoperability Specifications
Health & Social Care Information Centre
NHS in England


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