Summative Diagnosis:
Cardiovascular phenotypes: Hypoplastic left ventricle (LV), aortic atresia, and hypoplastic mitral, phenotypes consistent with hypoplastic left heart syndrome (HLHS).

Noncardiovascular phenotype: Severe craniofacial defect with short snout, micrognathia, cleft lip and palate, hypoplastic thymus, hypoplastic and accessory anterior lung lobes, renal anomalies, short gut, club limbs, bobtail, and syndatcyly.

Phenotypic Similarity to Human Syndrome:
HLHS



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
1300	Ventricular septal defect
1310	Ventricular septal defect, membranous
3804	Congenital heart disease