ICD-10 Code I82.702 – Chronic embolism and thrombosis of unspecified veins of left upper extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.702 – Chronic embolism and thrombosis of unspecified veins of left upper extremity
What it is
This code identifies a chronic clot or embolic obstruction in an unspecified vein of the left upper extremity. Use it when the record confirms the left arm location but does not name a specific vein.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings may include arm swelling, pain, heaviness, or venous congestion, but the diagnosis should be supported by imaging or clinician assessment.
When to use this code
Use I82.702 when the provider documents chronic embolism or thrombosis involving veins of the left upper extremity and no more specific vein is identified. It also fits follow-up visits for a known chronic condition when the left-sided site remains active in the record. If the note only says “history of” or gives a different limb, check documentation.
Do not use for
Do not use this code for acute upper-extremity thrombosis, superficial thrombophlebitis, or thrombosis in a different extremity. If the vein is specified elsewhere, code the documented site instead.
Coding tip
Verify chronicity and laterality together; if either is missing, check documentation before assigning I82.702.