2026
ICD-10-CM
Diagnosis
Code

I42.1 Obstructive hypertrophic cardiomyopathy

  • Billable
  • 2016–2026

I42.1 is a billable/specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Obstructive hypertrophic cardiomyopathy.

Inclusion term

  • Hypertrophic subaortic stenosis (idiopathic)

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