MC81

ICD-11 MMS 2026-01

Abnormalities of heart beat

Description

Abnormalities of heart beat is arrhythmia which is any disorder of the heart rate or rhythm. It means that the heart beats too quickly, too slowly or with an irregular pattern.

Excludes

  • http://id.who.int/icd/entity/1008196289 – Cardiovascular disorders present in the perinatal or neonatal period
  • http://id.who.int/icd/entity/1457291912 – specified arrhythmias

Exclusions from above levels

  • 19 – Certain conditions originating in the perinatal period
  • JA66 – Clinical findings on antenatal screening of mother

Child codes

  • MC81.0 – Tachycardia, unspecified
  • MC81.1 – Bradycardia, unspecified
  • MC81.2 – Palpitations
  • MC81.3 – Paroxysmal tachycardia
  • MC81.4 – Pulseless electrical activity, not elsewhere classified
  • MC81.Y – Other specified abnormalities of heart beat
  • MC81.Z – Abnormalities of heart beat, unspecified

Sibling codes

  • MC80 – Abnormal blood-pressure reading, without diagnosis of hypertension or hypotension
  • MC82 – Cardiac arrest
  • MC83 – Cardiac murmurs or other cardiac sounds
  • MC84 – Cardiovascular pain
  • MC85 – Gangrene
  • MC86 – Precordial pain
  • MC87 – Pressure or tightness of heart
  • MC88 – Prominent veins
  • MC8Y – Other specified symptoms or signs involving the circulatory system

Foundation entity

Abnormalities of heart beat – http://id.who.int/icd/entity/449943282

Part of: 21: Symptoms, signs or clinical findings, not elsewhere classified