Foot polydactyly Postaxial foot polydactyly Polydactyly of the foot most commonly refers to the presence of six toes on one foot. Postaxial polydactyly affects the lateral ray and the duplication may range from a well-formed articulated digit to a rudimentary digit. Polydactyly affecting the 5th toe UMLS:C2112129 Fibular polydactyly Posterior polydactyly of foot Extra toe attached near the little toe Postaxial polydactyly of foot The modifier postaxial means that the supernumerary digit is not a hallux. Postaxial polydactyly of feet UMLS:C4020865 HP:0010346 HP:0001830