Interface ITerminologyServices

public interface ITerminologyServices
The value set system has a collection of value sets that define code systems, and construct value sets from them Large external terminologies - LOINC, Snomed, etc - are too big, and trying to represent their definition as a native value set is too large. (e.g. LOINC + properties ~ 500MB). So we don't try. Instead. we assume that there's some external server that provides these services, using this interface The FHIR build tool uses for these services