ICD-11 code : BC81.2;
Preferred Label : Macro reentrant atrial tachycardia;
ICD-11 definition : 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.;
ICD-11 synonym : macro re-entrant atrial tachycardia; MRAT - [macro re-entrant atrial tachycardia];
ICD-11 acronym : MRAT;
ICD-11 inclusion : intra-atrial re-entry tachycardia;
ICD-11 "other" category code : BC81.2Y;
ICD-11 "unspecified" category code : BC81.2Z;
Origin ID : 337572245;
Automatic exact mappings (from CISMeF team)
- ICD-10 Mapping
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.
