The generator matrix

 1  0  1  1  1  1  1  0  1
 0  1 2X+7  8 X+6 X+1 X+5  1 2X+7
 0  0  6  0  0  3  6  3  6
 0  0  0  3  0  6  6  0  6
 0  0  0  0  6  6  3  3  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+54x^12+486x^14+180x^15+2430x^16+1944x^17+7530x^18+4860x^19+1944x^20+216x^21+36x^24+2x^27

The gray image is a code over GF(3) with n=81, k=9 and d=36.
This code was found by Heurico 1.16 in 0.0537 seconds.