# Add SNOMED codes to values in Internal code set

**Category:** [Technical (archive)](https://discourse.openehr.org/c/technical-archive/156)
**Created:** 2017-04-15 08:59 UTC
**Views:** 1
**Replies:** 3
**URL:** https://discourse.openehr.org/t/add-snomed-codes-to-values-in-internal-code-set/15614

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## Post #1 by @system

Hi,

I am trying to model some archetypes using coded text. The option values should ideally come from SNOMED. Currently we do not have access to a terminology service and so we are using Internal codes to achieve what we want.

However we would like recorded values to also include their SNOMED codes for backward compatibility when we start using terminology service in the future. How can we include a terminology code with the option values in internal code set.

Regards

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## Post #2 by @system

Dileep,

There are various things to consider

1. bind the SNOMED codes you want in the archetype term_binding section
1. consider how you design your templates, in the sense of what codes - the internal, or the SNOMED get stored at runtime.
1. consider how the CDR implementation Operational Templates (OPTs) - i.e. does it do any kind of terminological substitutions?

Background information:

- [Terminology Integration section of the ADL2 specification.](http://www.openehr.org/releases/AM/latest/docs/ADL2/ADL2.html#_terminology_integration)
- [OPT2 spec](http://www.openehr.org/releases/AM/latest/docs/OPT2/OPT2.html), which explains some of the logical options that can be implemented with OPTs.

- thomas

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## Post #3 by @system

We simply add the wanted SNOMED codes to the Template. This works well for smaller subsets . One example may be found in the URL below. Unfortunately the examples are Norwegian, but I guess you will find the relevant elements .

https://github.com/bjornna/dips-ckm/blob/nymaster/templates/EyeModule/FU%20-%20Synsfelt.oet

Vennlig hilsen

Bjørn Næss

Produktansvarlig

DIPS ASA

-------- Opprinnelig melding --------

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## Post #4 by @system

Thank you. Will have a look

regards

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**Canonical:** https://discourse.openehr.org/t/add-snomed-codes-to-values-in-internal-code-set/15614
**Original content:** https://discourse.openehr.org/t/add-snomed-codes-to-values-in-internal-code-set/15614