The generator matrix

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

generates a code of length 23 over Z16 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+436x^18+2144x^19+6738x^20+13852x^21+27063x^22+29976x^23+27865x^24+14384x^25+6138x^26+1800x^27+588x^28+52x^29+27x^30+8x^32

The gray image is a code over GF(2) with n=184, k=17 and d=72.
This code was found by Heurico 1.16 in 39.7 seconds.