The generator matrix
1 1 1 1 1 1 1 1 1 X
0 X 2X 0 3 X+6 X+6 3 X+3 X+6
0 0 3 3 6 6 0 3 6 0
generates a code of length 10 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 18.
Homogenous weight enumerator: w(x)=1x^0+162x^18+324x^20+216x^21+18x^24+8x^27
The gray image is a code over GF(3) with n=90, k=6 and d=54.
This code was found by Heurico 1.16 in 0.000925 seconds.