The generator matrix

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

generates a code of length 11 over F9[X]/(X^2) who´s minimum homogenous weight is 80.

Homogenous weight enumerator: w(x)=1x^0+648x^80+152x^81+5184x^89+576x^90

The gray image is a linear code over GF(9) with n=99, k=4 and d=80.
This code was found by Heurico 1.16 in 0.000975 seconds.