CodeSystem example
Request
{baseURL}https://snowstorm.ihtsdotools.org/fhir/CodeSystem/$lookup?system=http://snomed.info/sct/&version=http://snomed.info/sct/900000000000207008&code=840539006&designationUseContext=http://snomed.info/sct|32570271000036106&designationUseContext=http://snomed.info/sct|20581000087109
(Language ReferenceSet SCTIDs here are for Australian English and Canadian French respectively)
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