The generator matrix

 1  0  1  1  1 12  1  1  2  6  1  1  2  1  1  1  2 12  1  0  1  1  1
 0  1  1 12 11  1  2  7  1  1  5  8  0 10  2 14  2  2  6  0 12 10  0
 0  0  2  6  4  6  2 14  2  0  0  4  6  6  4  4  2  6  0  2  6  0  0
 0  0  0  8  0  0  0  0  0  8  8  8  0  8  0  8  8  0  0  8  0  0  0
 0  0  0  0  8  0  0  0  0  8  0  0  8  0  8  8  8  0  0  8  8  0  0
 0  0  0  0  0  8  0  0  8  8  8  0  0  0  8  8  0  8  0  8  0  0  0
 0  0  0  0  0  0  8  0  0  8  8  8  8  0  0  8  0  8  8  8  0  8  0
 0  0  0  0  0  0  0  8  8  0  0  0  8  8  8  8  0  8  8  8  0  8  0

generates a code of length 23 over Z16 who´s minimum homogenous weight is 16.

Homogenous weight enumerator: w(x)=1x^0+164x^16+80x^17+593x^18+1120x^19+3964x^20+6832x^21+11644x^22+16704x^23+11672x^24+6832x^25+4003x^26+1120x^27+580x^28+80x^29+132x^30+3x^32+11x^34+1x^42

The gray image is a code over GF(2) with n=184, k=16 and d=64.
This code was found by Heurico 1.16 in 9.17 seconds.