The generator matrix

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

generates a code of length 10 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+96x^15+612x^16+2808x^18+2052x^19+6318x^20+5436x^21+2160x^22+156x^24+36x^25+8x^27

The gray image is a code over GF(3) with n=90, k=9 and d=45.
This code was found by Heurico 1.16 in 0.0904 seconds.