Choanal atresia

Definition

Choanal atresia (CA) is a congenital anomaly of the posterior nasal airway characterized by the obstruction of one (unilateral) or both (bilateral) choanal aperture(s), with clinical manifestations ranging from acute respiratory distress to chronic nasal obstruction.

Also known as atresia of nares — per MONDO

Also identified as

• DOID 9574 per MONDO
• ICD10CM Q30.0 per MONDO
• ICD9 748.0 per MONDO
• MESH D002754 per MONDO
• OMIM 608911 per MONDO
• Orphanet 137914 per MONDO
• SCTID 204508009 per MONDO
• UMLS C0008297 per MONDO