Candidate’s application Question code in OTBI or data module

I am looking to build a report that has the candidate’s application questions and answers and I need the question code on it for analytic purposes. I can build an OTBI but the question code field is not in there. I can build a data module for all questions with the code. Linking that back to the candidate data look challenging.

Has anyone found a way to find the question code in OTBI?

Does anyone have a data module that has the candidate data and question data (with code)?

Any help would be appreciated.