cystic kidney disease multicystic dysplastic kidney ICD10:Q61.4 ICD9:753.19 MCDK MESH:D021782 MONDO:0015988 Multicystic dysplastic kidney (MCDK) is a congenital anomaly of the kidney and urinary tract (CAKUT) in which one or both kidneys (unilateral or bilateral MCDK respectively) are large, distended by multiple cysts, and non-functional. NCIT:C123031 Orphanet:1851 SCTID:204962002 UMLS:C3714581 multicystic renal dysplasia non-syndromic renal or urinary tract malformation