The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+122x^18+24x^19+257x^20+320x^21+908x^22+848x^23+922x^24+320x^25+226x^26+24x^27+90x^28+24x^30+9x^32+1x^36

The gray image is a code over GF(2) with n=184, k=12 and d=72.
This code was found by Heurico 1.16 in 0.762 seconds.