This correspondence formulatesGF(q)matrix descriptions for a class of weighted, directed graphs. As a result of this formulation, the concept of graph theoretic error-correcting codes is generalized to theq-ary case. It is shown that graph theoreticq-ary codes are completely orthogonalizable and, hence, one-step majority decodable. It is also seen that known techniques for the augmentation of circuit codes can he extended to theq-ary case. The resulting codes remain easily decodable.