The generator matrix

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

generates a code of length 18 over Z9 who´s minimum homogenous weight is 27.

Homogenous weight enumerator: w(x)=1x^0+1218x^27+4914x^30+11898x^33+20628x^36+15714x^39+4356x^42+318x^45+2x^54

The gray image is a code over GF(3) with n=54, k=10 and d=27.
This code was found by Heurico 1.13 in 12.7 seconds.