ICD-11 classes
11 Diseases of the circulatory system
Cardiac arrhythmia
Supraventricular rhythm disturbance
BC81 — Supraventricular tachyarrhythmia
BC81.2 — Macro reentrant atrial tachycardia
ICD-11 BC81.2 — Macro reentrant atrial tachycardia
An atrial arrhythmia in which there is intra-atrial reentry or circus movement around a fixed or functional central obstacle. The central obstacle may consist normal (e.g. valves) or abnormal (e.g., scar) structures.This form of SVT originates in the atrium; conduction to the ventricles is not necessary for the tachycardia to continue. An organised atrial rhythm with a rate typically between 250 and 350 bpm, including tachycardias using a variety of reentry circuits that often occupy large areas of the atrium (‘‘macro-reentrant’’). Here the arrhythmia involves the cavotricuspid isthmus.
The diagnosis includes nothing.
The diagnosis excludes nothing.
Diagnosis with code BC81.2 contains 5 clarifying diagnoses:
- BC81.20 — Cavotricuspid isthmus dependent macroreentry tachycardia
- BC81.21 — Non-scar, non-isthmus dependent macro reentrant atrial tachycardia
- BC81.22 — Scar mediated macro reentrant atrial tachycardia
- BC81.2Y — Other specified macro reentrant atrial tachycardia
- BC81.2Z — Macro reentrant atrial tachycardia, unspecified