The generator matrix

 1  1  1  1  1  1  1  1  1  1  2  2  1  1  1  0  4  1  1 12  1  1  1
 0  2  0  2  8  0  6 14  0  2 10  4 10  4  0  4  2  4 14  2 10  2  4
 0  0  2  2  0 14  6  8  4  2 14  2 12 10  6  2  6  4 10  6  0  0  2
 0  0  0  4  4  4  0  4 12  8  8  0  0  4  0 12  4  8  4  8 12  4  0

generates a code of length 23 over Z16 who´s minimum homogenous weight is 19.

Homogenous weight enumerator: w(x)=1x^0+148x^19+189x^20+410x^21+782x^22+1066x^23+769x^24+428x^25+152x^26+96x^27+24x^28+26x^29+2x^30+2x^31+1x^36

The gray image is a code over GF(2) with n=184, k=12 and d=76.
This code was found by Heurico 1.16 in 0.113 seconds.