BC63.0

ICD-11 MMS 2026-01

Atrioventricular block, first degree

Description

Disorder of the atrioventricular conduction system in which the PR interval is greater than the 97th percentile for age or > 200 ms in adults

Index terms

  • Atrioventricular block, first degree
  • first degree atrioventricular heart block
  • first degree heart block
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  • incomplete atrioventricular block, first degree

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

  • BC63.1 – Atrioventricular block, second degree
  • BC63.2 – Complete atrioventricular block
  • BC63.3 – Right bundle branch block
  • BC63.4 – Left bundle branch block
  • BC63.5 – Nonspecific intraventricular conduction delay
  • BC63.Y – Other specified conduction disorders
  • BC63.Z – Conduction disorders, unspecified

Foundation entity

Atrioventricular block, first degree – http://id.who.int/icd/entity/1438248929

Part of: BC63: Conduction disorders › 11: Diseases of the circulatory system