ICD-10 Code I82.519 – Chronic embolism and thrombosis of unspecified femoral vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.519 – Chronic embolism and thrombosis of unspecified femoral vein
What it is
This code identifies a chronic blockage of a femoral vein by a clot or embolus, when the affected side is not specified. It indicates a long-standing venous obstruction in the thigh region.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include leg swelling, pain, heaviness, or venous insufficiency signs, but the record should support chronic thrombosis or embolism of the femoral vein.
When to use this code
Use I82.519 when the provider documents chronic embolism or thrombosis involving a femoral vein and does not identify right or left laterality. It may also fit follow-up encounters for an established chronic clot when the diagnosis remains active. Check documentation for acuity and laterality.
Do not use for
Do not use this code for acute deep vein thrombosis, superficial thrombophlebitis, or venous disease without documented femoral vein involvement. If the side is known, use the laterality-specific code instead.
Coding tip
Verify chronicity and side in the note before assigning this unspecified laterality code.