A heart disease that is present at birth that occurs with variable extracardiac laterality defects. Features of visceral heterotaxy are not always present but can include abnormal location of the organs within the thoracic, abdominal, or peritoneal cavities. Anatomic and functional problems can include intestinal malrotation leading to volvulus, biliary atresia, and various defects of the central nervous system, urinary tract, and skeleton.