The generator matrix

 1  0  0  1  1  1 2X  1  1 X+6  1  1  X  1  1  1  1  1  1
 0  1  0  1 2X+6  8  1  7  8  1 2X+8 2X+8  1  X 2X+6 X+7 2X+3 X+2  0
 0  0  1  8 2X+7  8 2X+1  7  X X+5 2X+1 X+1 2X+1 X+8 2X+2 2X+5 2X+1 2X 2X
 0  0  0 2X 2X+6  3 X+3 X+6 X+3  X  X 2X+6  3  3 X+3  0  3  0 2X+6

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+224x^30+192x^31+1680x^32+2240x^33+6300x^34+8118x^35+21566x^36+22884x^37+34794x^38+40390x^39+22902x^40+11118x^41+3758x^42+648x^43+180x^44+102x^45+48x^46+2x^51

The gray image is a code over GF(3) with n=171, k=11 and d=90.
This code was found by Heurico 1.16 in 14 seconds.