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Start free with EleplanCoronary ostial stenosis or atresia
ORPHA:99087Morphological anomaly
Also called COSA · Congenital coronary arterial orifice stenosis or atresia · Congenital stenosis or atresia of a coronary ostium
What it is
A rare coronary artery congenital malformation characterized by congenital, partial or total occlusion of the left or right coronary artery orifice, associated with hypoplasia of the proximal segment of the corresponding coronary artery. It may present with failure to thrive, dyspnea, syncope, angina pectoris, ventricular tachycardia, myocardial ischemia and/or sudden death.
Key facts
- Classified as
- Morphological anomaly
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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