The generator matrix

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

generates a code of length 22 over Z9[X]/(X^2+6,3X) who´s minimum homogenous weight is 43.

Homogenous weight enumerator: w(x)=1x^0+132x^43+36x^44+66x^46+4x^48+4x^51

The gray image is a code over GF(3) with n=198, k=5 and d=129.
This code was found by Heurico 1.16 in 0.00187 seconds.