2D Histogram with TEXT option: replace numbers with text?

I know I can change the format of the numbers, affecting the precision and adding text (like an “m” to indicate units of metres), but I am wondering if there is a way to replace the number entirely.

I created a 2D histogram, where each bin has a value from 1-21, which corresponds to a table of discrete options (and corresponding labels). So I would like to be able to use those labels instead of the numbers, if possible. Is it possible?


A such mechanism is not available.