ICD-10 Code I82.B13 – Acute embolism and thrombosis of subclavian vein, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.B13 – Acute embolism and thrombosis of subclavian vein, bilateral
What it is
This code identifies an acute blood clot or clot-related blockage in both subclavian veins, the large veins beneath the collarbones that drain blood from the arms and upper chest.
Clinical signs
Typical findings include swelling, pain, heaviness, or discoloration in both upper extremities, sometimes with visible collateral veins. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record clearly documents acute embolism or thrombosis affecting both subclavian veins. It may apply when imaging or specialist assessment confirms bilateral upper-extremity venous thrombosis. You should code only when laterality and acuity are specifically documented.
Do not use for
Do not use this code for chronic, unspecified, or unilateral subclavian vein thrombosis. Check documentation if the clot involves another vein location or if the record does not confirm bilateral acute disease.
Coding tip
Verify both laterality and acuity in the note before assigning I82.B13.