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Migrating OIDs to FHIR

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Revision as of 16:54, 12 May 2015 by Alexander Henket (talk | contribs) (Created page with "==Purpose== This page collects input from people looking into implementing FHIR and have vested interest in OIDs. The input will lead to 'best practice' guidance and 'things t...")
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Purpose

This page collects input from people looking into implementing FHIR and have vested interest in OIDs. The input will lead to 'best practice' guidance and 'things to consider' in order to help people make informed decisions.

Background

[FHIR] just like V2 and V3 before that has a way to identify objects. It normally uses a [system]/value or a [system]/code pair where the system determines the context for value or code. A system could be viewed as a namespace and is expressed using a [uri]. A URI could be a URN and a URL [[1]]. In FHIR the preferred system URI is a URL for readability reasons and the potential for resolving, i.e. a URL could 'lead somewhere'.

In V3 the only option for identifying instances, and code systems has always been an [OID]. Realms/countries that have ever been involved V3 will have a given number of OIDs for various things they need to identify, some of which would need to be exposed in FHIR as well.

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