ICD-10 Code I87.011 – Postthrombotic syndrome with ulcer of right lower extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I87.011 – Postthrombotic syndrome with ulcer of right lower extremity
What it is
This code identifies postthrombotic syndrome affecting the right leg, with a venous ulcer present. It reflects chronic venous damage after prior thrombosis, not an acute clot.
Clinical signs
Typical findings include chronic leg swelling, pain, skin discoloration, and a nonhealing ulcer on the right lower extremity. Clinical features vary; refer to documentation.
When to use this code
Use I87.011 when the record clearly documents postthrombotic syndrome and an ulcer on the right lower leg. The ulcer must be linked to the postthrombotic condition, not coded as an unrelated wound.
Choose this code when the provider specifies the right side and describes chronic venous sequelae after thrombosis. Check documentation if the ulcer cause, laterality, or relationship to the syndrome is unclear.
Do not use for
Do not use this code for acute deep vein thrombosis or for a venous ulcer without documented postthrombotic syndrome. Do not assign it if the ulcer is on another limb.
Coding tip
Confirm laterality and the documented link between the ulcer and postthrombotic syndrome before coding.