BC62

ICD-11 MMS 2026-01

Accessory pathway

Description

An additional electrical connection which typically bypasses the AV node, typically inserting directly into atrial and ventricular myocardium, but may also connect to the specialised conduction system (e.g., the bundle of His, right or left bundles, or one of the fascicles).

Index terms

  • Accessory pathway
  • anomalous AV bypass pathway
  • anomalous AV bypass tract
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  • anomalous AV connection
  • anomalous AV pathway
  • Atrioventricular accessory pathway with antegrade conduction only
  • Atriofascicular accessory pathway
  • Mahaim fibre accessory conduction pathway
  • Fasciculoventricular accessory pathway
  • Fascicular-ventricular accessory pathway
  • Atrioventricular accessory pathway with retrograde conduction only
  • concealed accessory pathway
  • Atrioventricular accessory pathway with bidirectional conduction
  • Isolated ventricular preexcitation

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

  • BC60 – Atrial premature depolarization
  • BC61 – Junctional premature depolarization
  • BC63 – Conduction disorders
  • BC64 – Sudden arrhythmic death syndrome
  • BC65 – Cardiac arrhythmia associated with genetic disorder
  • BC90 – Rhythm disturbance at level of atrioventricular junction
  • BC91 – Pacemaker or implantable cardioverter defibrillator battery at end of battery life
  • BC9Y – Other specified cardiac arrhythmia
  • BC9Z – Cardiac arrhythmia, unspecified

Foundation entity

Accessory pathway – http://id.who.int/icd/entity/109261437

Part of: 11: Diseases of the circulatory system