LA8A.3ICD-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 valveLA8A.1– Congenital pulmonary atresiaLA8A.2– Congenital anomaly of aortic valveLA8A.4– Aneurysm of aortic sinus of ValsalvaLA8A.5– Congenital subaortic stenosisLA8A.6– Congenital subpulmonary stenosisLA8A.Y– Other specified congenital anomaly of a ventriculo-arterial valve or adjacent regionsLA8A.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