A condition in which one or both testicles fail to move from the abdomen, where they develop before birth, into the scrotum. Undescended testicles may increase the risk for development of testicular cancer.
Also applicable to/known as
Cryptorchism
Ectopic testis
ICD-9-CM Volume 2 Index Entries That Refer To 752.51
Aberrant (congenital) - see also Malposition, congenital