BC81.21

ICD-11 MMS 2026-01

Non-scar, non-isthmus dependent macro reentrant atrial tachycardia

Description

A macro re-entrant atrial tachycardia coursing around a normal cardiac structure (except the cavotricuspid isthmus) such as the mitral valve annulus, or superior caval vein.

Index terms

  • Non-scar, non-isthmus dependent macro reentrant atrial tachycardia
  • Non-scar, non-isthmus dependent right atrial macro reentrant atrial tachycardia
  • Right atrial non-cavotricuspid isthmus dependent macroreentrant atrial tachycardia, non-scar mediated
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  • Non-scar, non-isthmus dependent left atrial macro reentrant atrial tachycardia
  • macroreentry tachycardia arising from the left atrium

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

  • BC81.20 – Cavotricuspid isthmus dependent macroreentry tachycardia
  • BC81.22 – Scar mediated macro reentrant atrial tachycardia
  • BC81.2Y – Other specified macro reentrant atrial tachycardia
  • BC81.2Z – Macro reentrant atrial tachycardia, unspecified

Foundation entity

Non-scar, non-isthmus dependent macro reentrant atrial tachycardia – http://id.who.int/icd/entity/649668501

Allowed postcoordination axes

Part of: BC81.2: Macro reentrant atrial tachycardia › BC81: Supraventricular tachyarrhythmia › 11: Diseases of the circulatory system