If you use simple SSI Script like AIC [e.g. AIC(Q1)], the other specify comment will be automatically inserted into the question using the constructed list.
If you are using Perl with conditions applied, you can use something like this demo ...
Begin Unverified Perl
Your code 5 in QList will be defined as [%Q10a_r5_other%] , not the Other (specify) you had it defined in the original list at Q10a.