Is there any way to default/derive fiscal classification code on AP invoice lines for Etax calculati

Is there any way to derive or default fiscal classification codes on AP invoice lines. Like if accounting segment 1 and 2 is 100-1001 fiscal classification code on invoice line is A and if accounting segment 1 and 2 is 100-1008 fiscal classification code on invoice line is B. Idea is to default these codes so that user need not enter or select them.

Later I will to use these fiscal classification codes in Etax for tax calculation purpose. FYI. I have created fiscal classification codes A and B in Etax.  And if I select these fiscal classification codes on AP invoice lines the tax calculation is working as expected.