Polycystic kidney disease (PKD) is a genetic disorder characterized by the growth of numerous cysts in the kidneys. The kidneys are two organs, each about the size of a fist, located in the upper part of a person's abdomen, toward the back. The kidneys filter wastes and extra fluid from the blood to form urine.
diagnostic (comparative more diagnostic, superlative most diagnostic) 1  of, or relating to diagnosis. 2  characteristic of a particular disease.
Definition of Diagnostic test, treating physician, Testing facility. Diagnostic Test. A âdiagnostic testâ includes all diagnostic x-ray tests, all diagnostic laboratory tests, and other diagnostic tests furnished to a beneficiary. Treating Physician.