Other congenital malformations of other great arteries

This code signifies congenital structural defects affecting the large arteries originating from the heart, other than the aorta or pulmonary artery, that are not specified elsewhere. These malformations can include anomalies of the brachiocephalic, carotid, or subclavian arteries, or other major arterial trunks. The defects are present at birth and can impact blood flow to various parts of the body.

Use this code when documentation specifies a congenital malformation of a great artery that is not the aorta or pulmonary artery, and for which a more specific ICD-10-CM code does not exist. This applies to conditions such as anomalous origin of a subclavian artery or other rare congenital arterial anomalies. Documentation should clearly identify the specific great artery involved and confirm its congenital nature.

• Ensure the documentation explicitly states "congenital" and identifies a great artery other than the aorta or pulmonary artery.
• Avoid using this code if a more specific code exists for the documented great artery anomaly (e.g., specific aortic or pulmonary artery malformations).
• Review operative reports, imaging studies, and physician notes for precise anatomical descriptions and the congenital etiology.