ICD-10 Code I87.3 – Chronic venous hypertension (idiopathic) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I87.3 – Chronic venous hypertension (idiopathic)
What it is
I87.3 identifies chronic venous hypertension of the lower extremities when no secondary cause is documented. Use it for long-standing venous pressure elevation described as idiopathic or primary.
Clinical signs
Common findings include leg heaviness, swelling, skin discoloration, varicose veins, or venous stasis changes. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents chronic venous hypertension and indicates it is idiopathic, primary, or without a known cause. It may also fit cases with chronic venous insufficiency-type findings when the diagnosis is specifically stated. Check documentation if the record instead describes post-thrombotic or secondary disease.
Do not use for
Do not use I87.3 for venous hypertension caused by prior thrombosis, trauma, or another documented underlying condition. Do not assign it when the chart only mentions varicose veins without chronic venous hypertension.
Coding tip
Confirm the word “idiopathic” or “primary” in the assessment before selecting I87.3.