Looking for Application Term Code

Looking for student's Application Term Code (or something similar) - which would represent the student's first term at their particular student level.  For example, a student admitted as an undergraduate in FA13 would have an Application Term Code of FA13 for their UG student level records.  If the same student progressed to a graduate program in FA17, they would have an application term code of FA17 for their GR student level records.  Would this be the "cohort term set" data?  Could not find definitions for cohort term set fields in IGC.

Alternatively, is this represented in 'Term Set - UCSD First Time Grad,' 'Term Set - UCSD UG Non-Transfer,' 'Term Set - UCSD UG Transfer'?

Any assistance is appreciated.