The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X
 0  X  0  0  X  X a*X a^3*X  0 2*X a^2*X  X a^2*X a*X a^2*X a^5*X a*X  X a*X 2*X a^6*X a^2*X a^6*X a*X  0 a^5*X a^6*X a^6*X a^5*X  X
 0  0  X  0 a^7*X a^6*X a*X 2*X  X a^6*X a^6*X  X a^3*X  X a^5*X  X a^2*X a^6*X a^5*X a^6*X a^5*X a^7*X a^3*X  X a^2*X a^3*X a^3*X 2*X a^6*X a^5*X
 0  0  0  X a^7*X  X a^5*X a*X a*X a^7*X 2*X a^7*X a^3*X a^2*X 2*X a^3*X a^6*X 2*X  X a^6*X a^6*X a*X a^2*X a^3*X  X  0 a*X a*X  X 2*X

generates a code of length 30 over F9[X]/(X^2) who´s minimum homogenous weight is 216.

Homogenous weight enumerator: w(x)=1x^0+816x^216+1048x^225+5832x^232+1248x^234+46656x^241+1120x^243+1232x^252+888x^261+208x^270

The gray image is a linear code over GF(9) with n=270, k=5 and d=216.
This code was found by Heurico 1.16 in 3.78 seconds.