ICD-10 Code I87.312 – Chronic venous hypertension (idiopathic) with ulcer of left lower extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I87.312 – Chronic venous hypertension (idiopathic) with ulcer of left lower extremity
What it is
This code identifies chronic venous hypertension, meaning long-term increased pressure in the leg veins, with an ulcer on the left lower extremity. Use it when the documentation links the ulcer to idiopathic venous hypertension.
Clinical signs
Typical findings include chronic leg swelling, skin discoloration, venous stasis changes, and a nonhealing ulcer on the left lower leg or ankle. Clinical features vary; refer to documentation.
When to use this code
Use I87.312 when the provider documents chronic venous hypertension as the cause of a left-sided lower-extremity ulcer. The record should support both the venous disorder and the ulcer location. If the etiology or laterality is unclear, check documentation before coding.
Do not use for
Do not use this code for ulcers without documented venous hypertension, or for ulcers on a different limb. Check documentation if the ulcer is due to another cause, such as arterial disease, diabetes, or pressure injury.
Coding tip
Assign the code only when the left-sided venous ulcer and chronic idiopathic venous hypertension are both documented together.