attach a LOINC to a specific result for a DTA instead of setting it up at the DT

Do any of you know if it is possible to attach a LOINC to a specific result for a DTA instead of setting it up at the DTA level? For our HIV differentiation test, they are requiring us to send LOINC 68961-2 for HIV-1 and LOINC 81641-3 for HIV-2. Is this possible?