Summative Diagnosis:
Mutant Type 1:
Cardiovascular phenotype: Complex congenital heart defects associated with heterotaxy, such as transposition of the great arteries (TGA), double outlet right ventricle (DORV), atrioventricular septal defect (AVSD), right atrial isomerism with duplicated inferior vena cava (IVC), inverted hemiazygous venous connection with left sided hepatic vein connecting to the left side atrium, perimembranous ventricular septal defect (VSD), and inverted liver.
Noncardiac phenotype: situs inversus, right pulmonary isomerism, hemizygous venous connection
Mutant Type 2:
Cardiovascular phenotype: Double outlet right ventricle (DORV)/overriding aorta (Ao), hypoplastic aortic arch, subaortic ventricular septal defect (VSD), and muscular ventricular septal defect (mVSD)

Fyler Codes
The Fyler code developed by The Boston Children's Heart Foundation in Boston Children's Hospital provides a hierarchical clinical diagnosis of congenital cardiovascular defects and other disorders. These codes are used to delineate pathology in the mutant mouse models that parallel human disease and can be cross referenced to the International Pediatric and Congenital Cardiac Code (IPCCC) (http://www.ipccc.net/).

Fyler Code ID	Code Description
1300	Ventricular septal defect
1432	Overriding aortic valve
0110	Dextrocardia
0190	Heterotaxy syndrome
1100	Atrioventricular canal (endocardial cushion defect)
2810	Inferior vena cava anomaly
3950	{S,D,D}
3973	{I,L,L}
4240	Right bronchial isomerism
4447	Hepatic malformation
0600	Double outlet right ventricle
1200	Coarctation
0800	L-loop transpostion of the great arteries
1310	Ventricular septal defect, membranous
3804	Congenital heart disease
1320	Ventricular septal defect, muscular
1432	Overriding aortic valve