The generator matrix

 1  0  0  0  1  1  1  2 10  1  1  1 14  6  1  1  0 10 12  1  1  1  1  4  1  1  4  1  1
 0  1  0  0  0  9  5  1  1  4  8  7  6  1  1  3  1 14  6  8  5 15  1  1  4 15  1  7  8
 0  0  1  0  1  1  4  5  2  2 15  3  1 11  2 14  1  1  8  6 13  4 15 13  5 12 10 10  0
 0  0  0  1  1  4  1  1  3 13 10  9  7  8  6 11  5  5  1 14  4 14 12  6 11  9 12  5  4
 0  0  0  0  8  0  0  0  0  0  0  0  0  0  8  8  8  8  8  8  8  0  8  8  0  8  0  8  8

generates a code of length 29 over Z16 who´s minimum homogenous weight is 23.

Homogenous weight enumerator: w(x)=1x^0+154x^23+928x^24+3382x^25+7728x^26+15144x^27+23782x^28+28424x^29+24142x^30+15806x^31+7443x^32+2870x^33+924x^34+252x^35+70x^36+12x^37+6x^38+4x^39

The gray image is a code over GF(2) with n=232, k=17 and d=92.
This code was found by Heurico 1.16 in 52.3 seconds.