Chronic embolism and thrombosis of right axillary vein

This code signifies the persistent presence of an embolus or thrombus within the right axillary vein. This condition obstructs blood flow, potentially leading to arm swelling, pain, and functional impairment. It represents a long-standing or recurrent thrombotic event in this specific vascular location.

Apply this code when documentation clearly indicates a chronic (as opposed to acute) thrombotic or embolic occlusion of the right axillary vein. This diagnosis is typically supported by imaging studies such as ultrasound, venography, or CT angiography, along with a clinical history consistent with a prolonged or recurrent issue.

• Differentiate carefully between acute (I82.421) and chronic presentations; the documentation must specify "chronic."
• Ensure the laterality is explicitly documented as "right" to avoid using unspecified or left-sided codes.
• Consider co-reporting with codes for underlying causes, such as malignancy, hypercoagulable states, or thoracic outlet syndrome, if documented.