The generator matrix

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

generates a code of length 31 over Z16 who´s minimum homogenous weight is 25.

Homogenous weight enumerator: w(x)=1x^0+150x^25+1129x^26+3974x^27+7909x^28+15912x^29+21051x^30+30258x^31+21582x^32+16726x^33+7527x^34+3348x^35+1123x^36+268x^37+85x^38+18x^39+9x^40+2x^43

The gray image is a code over GF(2) with n=248, k=17 and d=100.
This code was found by Heurico 1.16 in 58 seconds.