The generator matrix

 1  1  1  1  1  1  1  2  2  4  1  0
 0  2  0  2  0  0  6  2  4  2  6  4
 0  0  2  2  0  6  6  6  2  6  4  2
 0  0  0  4  4  4  4  0  0  4  0  0

generates a code of length 12 over Z8 who´s minimum homogenous weight is 10.

Homogenous weight enumerator: w(x)=1x^0+80x^10+108x^12+56x^14+3x^16+8x^18

The gray image is a code over GF(2) with n=48, k=8 and d=20.
This code was found by Heurico 1.16 in 0.053 seconds.