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IPCCC ICD-11 Congenital Heart Atlas

You are here: Right-sided juxtaposition of the atrial appendages Congenital anomaly of left atrium Congenital anomaly of an atrium or atrial septum Structural developmental anomaly of heart or great vessels

IPCCC Term Right-sided juxtaposition of the atrial appendages
IPCCC Code 05.02.04
ICD-11 Code 1619917931


A congenital cardiac malformation in which the left atrial appendage extends from the left atrium, behind the great arteries, to lie adjacent to the right atrial appendage.



STS-EACTS-derived IPCCC term

Atrial abnormality, LA abnormality, LA appendage (right) juxtaposition

EPCC-derived IPCCC term

Right-sided juxtaposition of the atrial appendages,

ICD-11 MMS code or crossmap

LA8G.Y*: This Foundation term exists in ICD-11 MMS only as an index term under "Other specified congenital anomaly of left atrium" with code LA8G.Y. If using MMS to code, the Foun crossmap to this MMS code.

ICD-10 MMS code or crossmap

Q20.8**: This Foundation term is not in ICD-10. If using ICD-10 to code, crossmap to higher order term "Other congenital malformations of cardiac chambers or connections" with code Q20.8


Congenital anomaly of left atrium


Coding Notes

This is commonly associated with hypoplasia or atresia of the mitral valve, hypoplasia of the left ventricle, normal (i.e., subpulmonary only) conus and may be seen with atrioventricular septal defect (common atrioventricular canal) or subaortic or aortic stenosis or atresia.