LOINC subset expansion using FHIR endpoint

Thanks Tim,
My question was more to the point that is it valid from LOINC’s perspective to send the text string in the definition instead of the numeral…
So is it intended to allow this?

 {
            "property" : "CLASSTYPE",
            "op" : "=",
            "value" : "Laboratory class"
          }

or this (or both)

 {
            "property" : "CLASSTYPE",
            "op" : "=",
            "value" : "1"
          }

I think the issue here is really down to the FHIR LOINC page which defines the property as a String, but it looks like a code.

Tagging Daniel in - he might know the history.
@dvreeman