There was a 6.4% (3/47) rate of copy number abnormality (Trisomy 21, MID1‐related Opitz G/BBB syndrome and a 2q11.1 duplication), all of which were anomalous, rendering a 13.6% (3/22) rate of CMA abnormality among non‐isolated FIUVV. This evidence concerns the gene MID1 and Opitz G/BBB syndrome.