The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  1  1  1  1  1  1  1  1  2  1  1  1  1  1  2  1  1  1  2  1  2  1  1  1  1  1  1  1  1  2  1  1  1  1  2  1  1  4  1  4  1  1  2  2  1  1  2  1  1
 0 12  0  0  0  8  0  8  0 12  4  4  4  4 12  4  4  4  8  8  8  8  4  0  0 12  4  0 12  4  0 12  4  0  4  8  8  0  4 12  0 12 12  4 12  8  0  4  0  4 12  8  4 12 12  8  4  0  8  8  4 12 12  4  4  0  8 12  8 12  8  0  0  8  4  0  0 12 12 12  4  8  8  0  0  0  8  0  8 12  0  4 12  0  8  4 12 12  0
 0  0 12  0  0  8  4 12  4  4  4  0 12  4  0  8 12  4  0 12  8  8  0 12 12  8  0  8 12 12 12  0 12 12  0  0 12  8  0  0  4  0  4 12 12  4  8 12  0  0  8 12 12 12  8  4 12  8  0  4  8  4  8  8  4 12  0  4  4  4 12  0  0  4  4  8  0  0  8  4  8  8  0  8  4  8 12  0  4  4  4  0  0  4  4  8  8 12  8
 0  0  0 12  0  4  4  4  8  0  0 12  4  4 12  8 12  8  4 12  0  0  4  4  0  8 12  4 12  8  8  0  4 12  0  8  8 12 12 12  8  8 12  0  4  4 12  0  8  8  0 12  8  8  4  4 12  0 12  0 12  4  8 12  8  0  0  0  4  0 12  8 12 12 12  0 12  0  4  0  0 12  0  4  8 12  0  8  8 12  4  4  8  8  0  0 12  8 12
 0  0  0  0 12  4  8 12 12  4  0  0  0 12 12 12  0  4 12  8  8 12  8  4 12 12  4  8  4  0  0  8 12  8  8 12  0 12  8  4  4  4  0 12  0  4  8  0  8  0  4  4 12  8 12  0  8 12 12  8 12  0  8  0  0  8  8 12  4  8  8  4 12  8 12  8  8 12  8  4  4  0 12  4  0  4  8  4  0  8  0  0  8  4 12 12  4 12  0

generates a code of length 99 over Z16 who´s minimum homogenous weight is 91.

Homogenous weight enumerator: w(x)=1x^0+44x^91+87x^92+100x^93+75x^94+148x^95+71x^96+450x^97+568x^98+1136x^99+563x^100+418x^101+37x^102+148x^103+26x^104+46x^105+58x^106+24x^107+12x^108+20x^109+19x^110+16x^111+8x^112+4x^113+8x^114+4x^115+2x^117+2x^118+1x^174

The gray image is a code over GF(2) with n=792, k=12 and d=364.
This code was found by Heurico 1.16 in 1.45 seconds.