ICD-10 Code I12 – Hypertensive chronic kidney disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I12 – Hypertensive chronic kidney disease
What it is
Use this code for chronic kidney disease caused by hypertension. It identifies a combined condition where long-standing high blood pressure has contributed to kidney damage.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you will see documented hypertension with chronic kidney disease, and the record should support a causal link between the two conditions.
When to use this code
Use I12 when the provider documents hypertensive chronic kidney disease or clearly states that hypertension caused the kidney disease. Select the appropriate subcategory based on whether chronic kidney disease is present and documented. If the link is not stated, check documentation before coding.
Do not use for
Do not use this code for hypertension without kidney disease, or for chronic kidney disease with an unrelated cause. Do not assume causation unless the provider documents it.
Coding tip
Always code the chronic kidney disease stage separately when it is documented.