The generator matrix

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

generates a code of length 19 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 33.

Homogenous weight enumerator: w(x)=1x^0+236x^33+804x^34+1548x^35+1996x^36+2640x^37+4386x^38+3186x^39+2838x^40+1488x^41+478x^42+36x^43+30x^44+16x^45

The gray image is a code over GF(3) with n=171, k=9 and d=99.
This code was found by Heurico 1.16 in 0.2 seconds.