CTS2-LE REST API: Requesting Concept Details

Because of CTS2-LE_REST_API:_Resolve_Value_Set is a multi modal operation, the operation can be used to retrieve single codes with its display name. This functionality requires that parameter code and codeSystemUri is set.

For instance, the call

http://<host>/WebCts2LE/rest/fhir/ValueSet?
	_query=expandDefinedCodeSystem
	&codeSystemUri=urn:oid:2.16.840.1.113883.5.1
	&code=M

retrieves only the male code

...
<expansion>
	<timestamp/>
		<contains xmlns="http://hl7.org/fhir">
		<system value="urn:oid:2.16.840.1.113883.5.1"/>
		<code value="M"/>
		<display value="Male"/>
	</contains>
</expansion>
...

The same call can be performed to check wether a (code, code system)-pair is contained in a value set. If this pair is not contained the call yields an atom response with an expansion element that does not has any contains-elements as children:

...
<expansion>
   <timestamp />
</expansion>
...