The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+164x^18+368x^19+1852x^20+3416x^21+6156x^22+8816x^23+6248x^24+3424x^25+1788x^26+352x^27+148x^28+8x^29+20x^30+7x^32

The gray image is a code over GF(2) with n=184, k=15 and d=72.
This code was found by Heurico 1.16 in 2.44 seconds.