The generator matrix

 1  1  1  1  1  1  1  1  2  8  1  2  1  0  2  1  1  1 12  1  1  1  1
 0  2  0  6  4 14 12  2 14  2  8  2 10  2  6  6 14  0  2  4 12 10  8
 0  0 12  0  4  4  8  4  4  4 12  4  8  0  8  0 12  8  0  4  8  0  4
 0  0  0  8  0  0  8  0  0  8  8  8  0  0  8  0  8  0  8  8  8  0  0
 0  0  0  0  8  0  0  8  8  8  0  0  8  8  0  8  0  8  8  0  8  0  8
 0  0  0  0  0  8  0  8  8  0  0  8  0  0  8  8  0  8  8  8  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+38x^18+84x^19+164x^20+516x^21+833x^22+868x^23+820x^24+496x^25+141x^26+68x^27+36x^28+12x^29+11x^30+4x^31+3x^32+1x^34

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 0.0936 seconds.