Left posterior fascicular block

Description

Disorder of the atrioventricular conduction system characterised by right axis deviation for age (between 90° and 180° in adults), with a qR pattern in inferior leads, rS pattern in leftward leads (I and aVL), and a QRS duration that does not meet age dependent criteria for complete bundle branch block (less than 120 ms in adults, less than 100 ms in children 4 to 16 years of age, and less than 90 ms in children less than 4 years of age)

Index terms

Left posterior fascicular block
left fascicular posterior bundle branch block
posterior fascicular block

Exclusions from above levels

01 – Certain infectious or parasitic diseases
05 – Endocrine, nutritional or metabolic diseases
18 – Complications of pregnancy, childbirth and the puerperium

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19 – Certain conditions originating in the perinatal period
20 – Congenital malformations, deformations and chromosomal abnormalities
22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

BC63.40 – Left anterior fascicular block
BC63.4Z – Left bundle branch block, fascicle unspecified

Foundation entity

Left posterior fascicular block – http://id.who.int/icd/entity/934404384

Part of: BC63.4: Left bundle branch block › BC63: Conduction disorders › 11: Diseases of the circulatory system