ICD-10 Code I82.512 – Chronic embolism and thrombosis of left femoral vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.512 – Chronic embolism and thrombosis of left femoral vein
What it is
This code identifies a long-standing clot or embolic obstruction in the left femoral vein. Use it when the record specifies chronic involvement of that deep vein in the left thigh.
Clinical signs
Clinical features may include chronic leg swelling, pain, heaviness, or venous discoloration. Documentation may also note prior deep vein thrombosis with persistent residual obstruction; clinical features vary, refer to documentation.
When to use this code
Use I82.512 when the provider documents chronic embolism, thrombosis, or both in the left femoral vein. It fits follow-up visits, imaging-confirmed chronic clot, or assessment of persistent venous obstruction after a prior DVT. Do not infer laterality or chronicity from vague history alone.
Do not use for
Do not use this code for acute left femoral vein thrombosis, unspecified DVT, or thrombosis in another vein location. Check documentation if the record does not clearly state chronic left femoral vein involvement.
Coding tip
Verify both chronicity and left-sided femoral vein involvement before assigning this code.