ICD-10 Code I15.1 – Hypertension secondary to other renal disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I15.1 – Hypertension secondary to other renal disorders
What it is
This code identifies high blood pressure caused by a kidney disorder other than renal artery disease. Use it when the documentation links the hypertension to a renal condition.
Clinical signs
Clinical features vary; refer to documentation. You may see elevated blood pressure alongside evidence of an underlying renal disorder, with the provider noting a secondary cause.
When to use this code
Use I15.1 when the record states hypertension is secondary to another renal disorder, such as chronic kidney disease or another documented renal condition. Code the underlying kidney disorder as well, when reported. If the cause is not clearly documented, check documentation before assigning a secondary hypertension code.
Do not use for
Do not use this code for primary, essential hypertension without a renal cause. It is also not for hypertension due to renal artery stenosis or other specific secondary causes unless documented as I15.1.
Coding tip
Link the hypertension to the renal disorder in the chart; if the causal relationship is not stated, query the provider.