LA8A.3

ICD-11 MMS 2026-01

Congenital supravalvar aortic stenosis

Description

A congenital cardiovascular malformation with narrowing of the aorta at the level of the sinotubular junction which may extend into the ascending aorta. Additional information: 'Congenital supravalvar aortic stenosis' is described as three forms: an hourglass deformity, a fibrous membrane, and a diffuse narrowing of the ascending aorta. Supravalvar aortic stenosis may involve the coronary artery ostia, and the aortic leaflets may be tethered. The coronary arteries can become tortuous and dilated due to elevated pressures and early atherosclerosis may ensue.

Index terms

  • Congenital supravalvar aortic stenosis
  • congenital aortic stenosis NOS
  • congenital aortic stricture
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  • congenital ascending aortic stenosis
  • congenital ascending aortic stricture
  • congenital narrowed aorta
  • congenital stenosis of aorta
  • congenital stricture of aorta
  • congenital supravalvular aortic stenosis

Excludes

  • LA8A.20 – Congenital aortic valvar stenosis

Exclusions from above levels

  • LA85.4 – Common arterial trunk
  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LA8A.0 – Congenital anomaly of pulmonary valve
  • LA8A.1 – Congenital pulmonary atresia
  • LA8A.2 – Congenital anomaly of aortic valve
  • LA8A.4 – Aneurysm of aortic sinus of Valsalva
  • LA8A.5 – Congenital subaortic stenosis
  • LA8A.6 – Congenital subpulmonary stenosis
  • LA8A.Y – Other specified congenital anomaly of a ventriculo-arterial valve or adjacent regions
  • LA8A.Z – Congenital anomaly of a ventriculo-arterial valve or adjacent regions, unspecified

Foundation entity

Congenital supravalvar aortic stenosis – http://id.who.int/icd/entity/1066595728

Part of: LA8A: Congenital anomaly of a ventriculo-arterial valve or adjacent regions › 20: Developmental anomalies