The generator matrix

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

generates a code of length 11 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+930x^18+486x^19+1296x^20+2574x^21+8262x^22+2592x^23+2988x^24+486x^25+68x^27

The gray image is a code over GF(3) with n=99, k=9 and d=54.
This code was found by Heurico 1.16 in 0.0666 seconds.