ICD-10 Code I13.0 – Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I13.0 – Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
What it is
I13.0 identifies combined hypertensive heart disease and chronic kidney disease when heart failure is also present. Use it when the record links hypertension to both cardiac and renal disease.
Clinical signs
Typical documentation may include hypertension, heart failure, and chronic kidney disease in the same patient. Clinical features vary; refer to documentation for the specific heart failure type and CKD stage.
When to use this code
Use this code when the provider documents hypertensive heart disease with heart failure and CKD stage 1 through stage 4, or CKD that is unspecified. The hypertension must be part of the causal relationship, not just a separate diagnosis.
Apply it when both heart failure and chronic kidney disease are attributable to hypertension in the note. Check documentation if the renal disease is end-stage or if the relationship between conditions is unclear.
Do not use for
Do not use I13.0 if heart failure is absent, or if the kidney disease is stage 5 or end-stage renal disease. Do not assign it when hypertension, heart disease, and CKD are documented separately without linkage.
Coding tip
Verify that the provider explicitly connects hypertension, heart failure, and CKD before assigning I13.0.