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IPCCC ICD-11 Congenital Heart Atlas

You are here: Right hand pattern ventricular topology Visceral heterotaxy Congenital anomaly of position or spatial relationships of thoraco-abdominal organs Structural developmental anomaly of heart or great vessels

IPCCC Term Right hand pattern ventricular topology
IPCCC Code 02.03.01
ICD-11 Code 1541694179


A congenital cardiac finding in which the chirality, or handedness, of the ventricles is normal, also known as D-loop.


D-loop ventricles, Dextro-ventricular looping, D-bulboventricular loop

STS-EACTS-derived IPCCC term

Ventricular topology, Right hand pattern ventricular topology (D-Loop)

EPCC-derived IPCCC term

Right hand pattern ventricular topology (D loop) (segmental nomenclature letter 2: 'D')

ICD-11 MMS code or crossmap

LA81*: This Foundation term is listed as an index term under "Abnormal ventricular relationships" and can be crossmapped to this MMS term by using ICD-11MMS code LA81.

ICD-10 MMS code or crossmap

Q20.9**: This Foundation term is not in ICD-10. If coding using ICD-10, crossmap to “Congenital malformation of cardiac chambers and connections, unspecified” with code Q20.9


Visceral heterotaxy


Coding Notes

Chirality or handedness with a right-handed right ventricle and means likening the morphological right ventricle to a right hand by representing the inflow by the thumb, outflow by the index finger, and septum by the palm. This is a normal finding but should be coded in the presence of abnormal positions of the atria or great arteries where it represents an abnormality of the interrelationships of the ventricles relative to the remainder of the heart.

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