The correct description for Form 1099-R, box 7 Code 2 is Early distribution, exception applies (under age 59½). Turbo Tax dropdown choices reflect what the code numbers mean.
If you see a 2 on your Form, your code is a 2. The added word "nondisability" is not a valid code. Ignore that.
See page 7 of the Form 1099-R instructions.
https://www.irs.gov/pub/irs-pdf/f1099r_16.pdf