The generator matrix

 1  0  0  0  1  1  1  3  1  1  1  1  1  1  1 2X  0  1  1  1 X+6  X  1  1 2X  1  1  1 2X+6  0 X+3  1  1  1 X+6  1  1  1  1  1  1 2X+3  1 X+6 X+3  1  1
 0  1  0  0  3  1  7  1  X X+6 2X+8 2X+5 2X+1  3 X+4  1  1 X+1 X+6 X+5  1  1 2X+5  8  1 2X+2 2X+1  2  1 X+3  3 2X+3 2X+7  5  1 X+6 X+7  4 2X+6 X+4 X+2 2X+3 2X+8  1  1 2X+4 2X+1
 0  0  1  0 2X+4 2X+1 X+2 2X+4 X+1 X+5  6  4 2X+7 X+6 2X 2X+8  1 X+8  8 2X+2 2X+5  2 2X+2  1 X+3 2X+3 2X+8  5 2X+1  1  1 X+1  6 2X+1  X  4 X+6  6  0 2X+8 2X+3 2X+3 X+1  6  0 X+1 2X+6
 0  0  0  1 2X+2  6 2X+8 2X+8  7  X  1 X+6  8  5 X+7 X+1 2X+6  0 2X+4 X+4 X+3 2X+5 X+5  2 X+8  5  1 2X+6 2X+1 2X+5  1 X+2 X+8 X+6  7 2X+6  7 2X 2X+7 2X+1  8  1 X+4  0  7 X+1  4

generates a code of length 47 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+1338x^84+1734x^85+5346x^86+8894x^87+11964x^88+19656x^89+29382x^90+35622x^91+46770x^92+58206x^93+64722x^94+66690x^95+63642x^96+46788x^97+33888x^98+21326x^99+8466x^100+4434x^101+2004x^102+252x^103+90x^104+100x^105+54x^106+24x^107+30x^108+12x^109+6x^110

The gray image is a code over GF(3) with n=423, k=12 and d=252.
This code was found by Heurico 1.16 in 321 seconds.