Systems and methods are provided for encoding and decoding constrained codes using an enumerative coding graph. The constrained code may contain run-length and DC level limits. The enumerative coding graph contains a series of states and each state has two branches that lead to other states. Each state in the enumerative coding graph is assigned a cardinality. Configuring the structure of the graph and the cardinalities associated with each state allow the encoder to generate a code that conforms to defined constraints.