ICD-11 definition : A condition caused by trauma during birth or by failure of the nasal septum to correctly
develop during the antenatal period. This condition is characterized by the presence
of a hole in the nasal septum.;
A condition caused by trauma during birth or by failure of the nasal septum to correctly
develop during the antenatal period. This condition is characterized by the presence
of a hole in the nasal septum.