ICD-10 Code I11 – Hypertensive Heart Disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I11 – Hypertensive heart disease
What it is
I11 identifies hypertensive heart disease, meaning heart changes or complications caused by long-term high blood pressure. Use it when the record links the cardiac condition to hypertension.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the chart may show left ventricular hypertrophy, heart failure, or other structural heart changes attributed to chronic hypertension.
When to use this code
Use I11 when the provider documents hypertensive heart disease or a heart condition due to hypertension. Code the documented cardiac manifestation as well, if the record supports it and coding guidelines require it.
If the note only states hypertension without heart involvement, this code is not appropriate. Check documentation for a clear causal link between the hypertension and the heart disease.
Do not use for
Do not use I11 for uncomplicated hypertension or for heart disease with no documented hypertensive cause. Check documentation if the relationship is unclear.
Coding tip
Look for explicit provider wording tying the heart condition to hypertension before assigning I11.