Summative Diagnosis:
Cardiovascular phenotypes: Congenital heart defects associated with heterotaxy including dextrocardia and duplicated inferior vena cava (IVC).

Noncardiovascular phenotype: Abnormal thoracic and abdominal visceral organ situs anomalies, such as dextrogastria. Also observed was malaligned sternal vertebrae.

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 Codes	Code Description
110	Dextrocardia
190	Heterotaxy Syndrome
2810	Inferior vena cava anomaly
3817	Abdominal situs ambiguous (abdominal heterotaxy)
4100	Skeletal, skin, muscle anomaly
4907	Non-cardiac thoracic abnormality