The generator matrix

 1  0  1  1  1  1  1  1  1  1
 0  1  1  0  8  3  3  7  7  1
 0  0  6  3  6  3  0  6  3  0

generates a code of length 10 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+108x^18+108x^21+18x^24+8x^27

The gray image is a code over GF(3) with n=30, k=5 and d=18.
This code was found by Heurico 1.16 in 0.000282 seconds.