ICD-10 Code I15.0 – Renovascular hypertension (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I15.0 – Renovascular hypertension
What it is
Use this code for high blood pressure caused by reduced blood flow to the kidneys, usually from narrowing of the renal arteries. It identifies a secondary form of hypertension with a vascular cause.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see hypertension linked to renal artery disease, kidney asymmetry, or evidence of renovascular compromise on imaging.
When to use this code
Assign I15.0 when the provider documents hypertension due to renal artery stenosis, occlusion, or another renovascular cause. Use it when the diagnosis is confirmed or clearly stated as secondary to a kidney blood vessel problem.
Do not use it for essential hypertension without a documented renal vascular cause. If the record only suggests possible renovascular disease, check documentation before coding.
Do not use for
Do not use this code for primary hypertension, unspecified hypertension, or kidney disease without documented renovascular hypertension. Check documentation if the cause of elevated blood pressure is unclear.
Coding tip
Look for explicit provider linkage between hypertension and renovascular disease before assigning I15.0.