docs: public Set<T> getValueAsEnum() {
  		Validate.notNull(myBinder, "This object does not have a binder. Constructor BoundCodeableConceptDt() should not be called!");
  		Set<T> retVal = new HashSet<T>();
  		for (CodingDt next : getCoding()) {
  			if (next == null) {
  				continue;
  			}
  			T nextT = myBinder.fromCodeString(defaultString(next.getCodeElement().getValue()), defaultString(next.getSystemElement().getValueAsString()));
  			if (nextT != null) {
  				retVal.add(nextT);
  			} else {
  				// TODO: throw special exception type?
  			}
  		}
  		return retVal;
  	}