The generator matrix

 1  0  0  0  0  1  1  1  3  3  1  0  1
 0  1  0  0  0  6  3  7  1  1  3  1  5
 0  0  1  0  0  6  7  3  5  8  2  2  3
 0  0  0  1  0  7  4  6  3  5  0  2  1
 0  0  0  0  1  5  3  8  2  3  5  8  6

generates a code of length 13 over Z9 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+1290x^18+5184x^21+17496x^24+23714x^27+10692x^30+648x^33+24x^36

The gray image is a code over GF(3) with n=39, k=10 and d=18.
This code was found by Heurico 1.13 in 4.45 seconds.