  In this study, we investigate the construction of quantum CSS duadic codes
with dimensions greater than one. We introduce a method for extending smaller
splittings of quantum duadic codes to create larger, potentially degenerate
quantum duadic codes. Furthermore, we present a technique for computing or
bounding the minimum distances of quantum codes constructed through this
approach. Additionally, we introduce quantum CSS triadic codes, a family of
quantum codes with a rate of at least $\frac{1}{3}$.
