You are here: Left 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||Left hand pattern ventricular topology|
A congenital cardiac malformation in which the chirality, or handedness, of the ventricles is mirror image of normal, also known as L-loop.
L-loop ventricles, Levo-ventricular looping, Sinistro-ventricular looping, L-bulboventricular loop
STS-EACTS-derived IPCCC term
Ventricular topology, Left hand pattern ventricular topology (L-Loop)
EPCC-derived IPCCC term
Left hand pattern ventricular topology (L loop) (segmental nomenclature letter 2: 'L')
ICD-11 MMS code or crossmap
LA81*: This Foundation term is listed as an index term under the term "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
Chirality or handedness with a left-handed right ventricle and means likening the morphological right ventricle to a left hand by representing the inflow by the thumb, outflow by the index finger, and septum by the palm. An example is congenitally corrected transposition of great arteries.