The generator matrix

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

generates a code of length 25 over Z16 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+25x^18+16x^19+60x^20+64x^21+207x^22+368x^23+992x^24+640x^25+996x^26+368x^27+202x^28+64x^29+40x^30+16x^31+21x^32+11x^34+2x^36+1x^38+2x^40

The gray image is a code over GF(2) with n=200, k=12 and d=72.
This code was found by Heurico 1.16 in 0.124 seconds.