ICD-10 Code I82.621 – Acute embolism and thrombosis of deep veins of right upper extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.621 – Acute embolism and thrombosis of deep veins of right upper extremity
What it is
This code identifies an acute blood clot or embolus in the deep veins of the right upper extremity. Use it when documentation specifies the right arm and the event is recent or acute.
Clinical signs
Typical findings include unilateral arm swelling, pain, tenderness, warmth, or visible venous distention. Clinical features vary; refer to documentation, and confirm that the clot involves deep veins rather than superficial veins.
When to use this code
Use I82.621 when the record states acute deep vein thrombosis or embolism in the right upper limb, including the axillary, subclavian, brachial, or other deep veins. Code it from provider documentation, imaging reports, or a clear final diagnosis. Check documentation if laterality or acuity is unclear.
Do not use for
Do not use this code for chronic or old thrombosis, superficial thrombophlebitis, or clots in the left or unspecified upper extremity. If the note does not confirm a deep vein source, check documentation.
Coding tip
Verify both acuity and right-sided laterality before assigning I82.621.