ICD-10 Code I82.601 – Acute embolism and thrombosis of unspecified veins of right upper extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.601 – Acute embolism and thrombosis of unspecified veins of right upper extremity
What it is
This code identifies an acute blood clot or embolus in an unspecified vein of the right upper extremity. It does not specify a deep or superficial vein, only that the right arm is affected.
Clinical signs
Typical findings include unilateral arm swelling, pain, tenderness, warmth, or a feeling of heaviness. Clinical features vary; refer to documentation, and confirm the acute venous event is in the right upper extremity.
When to use this code
Use this code when the record documents an acute embolism or thrombosis in a vein of the right arm, but does not name the exact vein. It is appropriate when the provider identifies the condition as acute and venous, with no further anatomic detail. If the documentation later specifies a more exact vein, code that instead.
Do not use for
Do not use it for chronic thrombosis, superficial thrombophlebitis, or clots in the left upper extremity. Check documentation if the note describes arterial disease or a different body site.
Coding tip
Code the highest level of documented specificity, and verify laterality and acuity before assigning I82.601.