ICD-10 Code I87.002 – Postthrombotic syndrome without complications of left lower extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I87.002 – Postthrombotic syndrome without complications of left lower extremity
What it is
I87.002 identifies postthrombotic syndrome affecting the left lower extremity without documented complications. It describes chronic venous problems that develop after a prior deep vein thrombosis in that leg.
Clinical signs
Typical findings include chronic leg swelling, heaviness, aching, skin discoloration, or venous stasis changes in the left lower limb. Clinical features vary; refer to documentation.
When to use this code
Use I87.002 when the record clearly states postthrombotic syndrome in the left lower extremity and does not document complications. It is appropriate for chronic sequelae after prior thrombosis, not for an acute clot. Confirm laterality and that the provider did not specify ulceration, inflammation, or other complications.
Do not use for
Do not use this code for acute deep vein thrombosis or for postthrombotic syndrome affecting another limb. Also avoid it when the chart documents complications that require a different code; check documentation.
Coding tip
Verify the provider’s laterality and whether any complication is present before assigning I87.002.