11Diseases of the circulatory system Diseases of the myocardium or cardiac chambers BC43Cardiomyopathy BC43.1Hypertrophic cardiomyopathy
BC43.12
category
Obstructive hypertrophic cardiomyopathy
Definition Obstructive hypertrophic cardiomyopathy is hypertrophic cardiomyopathy that manifests sufficient fixed or dynamic narrowing within one or both ventricles to result in a significant pressure gradient between the ventricular apex and the outflow valve (aortic or pulmonary).
Also indexed as
Obstructive hypertrophic cardiomyopathy hypertrophic obstructive cardiomyopathy hypertrophic obstructive subaortic stenosis idiopathic hypertrophic subaortic stenosis muscular subaortic stenosis obstructive cardiomyopathy obstructive idiopathic hypertrophic cardiomyopathy
Nearby in Hypertrophic cardiomyopathy
International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).
Release 2026-01.
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This page reproduces WHO classification content for reference. It is not
medical advice and must not be used to diagnose or treat. For coding
decisions, consult the official release and your national coding guidelines.
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