ICD-10 Code I82.709 – Chronic embolism and thrombosis of unspecified veins of unspecified upper extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.709 – Chronic embolism and thrombosis of unspecified veins of unspecified upper extremity
What it is
This code identifies a chronic clot or embolus in an unspecified vein of the upper extremity. Use it when the record confirms the condition but does not name the exact vein or side.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include arm swelling, pain, tenderness, or venous congestion, but the diagnosis should be supported by imaging or specialist assessment.
When to use this code
Use I82.709 when documentation states chronic embolism or thrombosis in an upper-extremity vein and no more specific vein is identified. It also fits when laterality is not documented or the record remains nonspecific. Check documentation if the note describes an acute event, superficial vein involvement, or a different vascular site.
Do not use for
Do not use this code for acute upper-extremity thrombosis, superficial thrombophlebitis, or thrombosis in a clearly named vein that has a more specific code. Check documentation when the site or chronicity is unclear.
Coding tip
Query for laterality and exact vein whenever possible, because I82.709 is a nonspecific fallback code.