The generator matrix

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

generates a code of length 9 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+654x^12+144x^13+3096x^14+3432x^15+23220x^16+11448x^17+72096x^18+46440x^19+11556x^20+4728x^21+180x^22+144x^23+6x^24+2x^27

The gray image is a code over GF(3) with n=81, k=11 and d=36.
This code was found by Heurico 1.16 in 3.63 seconds.