Case studies which use LOINC Document ontology

There are examples of integrating data using ICD9 or RxNorm. For example STRIDE group uses RxNorm to integrate data repositories from multiple institutions.

I have a question to the forum:

Clinical LOINC Document Ontology can also be used in a similar way to help integrate. Can you post your use of the document ontology if you use it as a reference terminology ?

For some NLP projects, I can, for example imagine comparing if particular NLP processing methodology works the same way on

57054-9 Triage and nursing note (Find Pt {Setting} Doc {Provider} DOC.CLINRPT)

from insitutionA as it works from institution B.