The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  X  X  X  0  1  1  X
 0  X  0 X+6  0  X 2X 2X+6 2X  0  6  3 X+6 2X X+6  X 2X+6  X X+6
 0  0  X 2X+3 2X  X  0 X+6 2X  3 X+6 2X  6  0 2X+3 2X X+3 X+3 2X+6
 0  0  0  3  0  6  0  3  6  3  3  3  3  3  3  6  3  0  6
 0  0  0  0  3  3  6  3  3  6  6  0  3  6  6  6  0  3  0

generates a code of length 19 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+60x^30+228x^31+312x^32+282x^33+990x^34+876x^35+2060x^36+2724x^37+3276x^38+3626x^39+2886x^40+1236x^41+452x^42+396x^43+132x^44+70x^45+66x^46+4x^48+4x^51+2x^54

The gray image is a code over GF(3) with n=171, k=9 and d=90.
This code was found by Heurico 1.16 in 0.41 seconds.