The generator matrix

 1  0  1  1  1  1  1  6  1  1  1 2X  1  1  1  X  1  1  1
 0  1  1  8  0 2X+1  5  1 2X+6 2X+5 X+1  1 X+5 2X+4 X+1  0  2 X+5  6
 0  0 2X  0  3  X X+6 X+3 X+3 2X+6  6  0  3 X+6 X+3  X  0  6 X+6
 0  0  0  X 2X+6  6 2X+3 2X 2X+6  X 2X+3 2X+3 2X 2X X+6 X+3  6  3  3

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+124x^30+96x^31+594x^32+1062x^33+1938x^34+2802x^35+7402x^36+6852x^37+11682x^38+13732x^39+6870x^40+3762x^41+1584x^42+240x^43+114x^44+148x^45+42x^46+4x^48

The gray image is a code over GF(3) with n=171, k=10 and d=90.
This code was found by Heurico 1.16 in 2 seconds.