Thomas For use (NHS in England) it's probably at the template level (but it would be good to occasionally specify at the node level).
In England there's a concerted effort to move towards a single terminology (SNOMED CT), but I imagine that's a long road. In the meantime, we have a mixed economy of coding systems. For some interoperability (such as a GP to GP communication), there is one coding system in use (in this case Read, but soon to be SNOMED CT). In other scenarios we map to a single coding system (for example in some of our HL7 messaging specifications, for our Commissioning Data Sets). In other scenarios such as Public Health England's Child Health data sets (which is where the hips example came from), we recognise that different systems use different coding systems and say to send the data in the coding system used to capture the data. So it's a very mixed picture, and the move towards SNOMED CT will increase the mixture in the picture. However, the nirvana of SNOMED CT across the board will make thing a lot easier, but is a long way in the future (should it be reached at all). Regards Dave Barnet From: openEHR-technical [mailto:openehr-technical-boun...@lists.openehr.org] On Behalf Of Thomas Beale Sent: Fri 30/10/2015 15:04 To: openehr-technical@lists.openehr.org Subject: Re: Binding to multiple terminologies / code systems Dave, the solution to this situation is not yet 100% clear in ADL2 (it is in ADL1.4, as others have described). We are trying to define a cleaner way to represent it in ADL2, but I'm still not clear on the requirements. It appears that the scenario you have is that since SNOMED CT, READ and CTV3 are extant in the UK, coding should be allowed using any of those, but not by other means. Does this apply across the whole HSCIC model library? Or do you want some more fine-grained control, e.g.: * do you want to designate certain terminologies for specific templates ? E.g. template A can only use SCT, but template B can use any of the three? * do you need to say on a node-by-node basis in a single template, e.g. this node must be coded by SCT, but this other node by say SCT-or-READ, and this third node, any of the 3 are allowed? If others can clarify requirements in this area as well, it would be very helpful. See here in the ADL2 draft spec <http://www.openehr.org/releases/AM/latest/docs/ADL2/ADL2.html#_terminology_integration> for current thinking on this. thanks - thomas On 29/10/2015 15:31, Barnet David (HEALTH AND SOCIAL CARE INFORMATION CENTRE) wrote: 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 ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSi recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere ********************************************************************************************************************
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