Perhaps it might be better if I recap my original question.
We are required to determine which codes to use for identifying lab specialties for each test we report in the HL7 CDA Laboratory report. For example:
Should 625-4 Bacteria identified in Stool by Culture be reported along with:
1) 18725-2 Microbiology studies (as stated in the Italian CDA HL7 Laboratory Report)
2) LP7819-8 MICRO (as in the class table provided by Regenstrief for Italian translation)?
I am not sure if this is done in the US, but we are required to do so.
Let me go back to my last question about the correspondance between a test and its lab specialty: if a lab provides us with a group of microbiology tests, can I assume that they all correspond to the same class (identified by one of the above codes) or should I verify the class each single test belongs to by using LOINC table?