Table 1. Examples of our proposed descriptive classification system.

Classical designation	Proposed designation
Left Bochdalek CDH without sac membrane, major herniation filling the chest	Left posterolateral CDD-c, severe organ displacement
Right Bochdalek “sac” hernia filling half of right chest	Right posterolateral CDD-nc, focal, moderate organ displacement
Left posterior muscularization defect with eventration of kidney	Posterior CDD-nc, focal, mild organ displacement
Right anterolateral sac hernia with contents filling three quarters of chest	Right anterolateral CDD-nc, focal, severe organ displacement
Eventration of most of left hemidiaphragm filling half of chest	Hemidiaphragmatic Left CDD-nc, diffuse, moderate organ displacement

CDH indicates congenital diaphragmatic hernia; CDD-c, congenital diaphragmatic defect with thoracic-peritoneal communication; CDD-nc, congenital diaphragmatic defect noncommunicating.