I82.462 Acute embolism and thrombosis of left calf muscular vein

ICD-10-CM Code I82.462: Acute embolism and thrombosis of left calf muscular vein

ICD-10-CM code I82.462 identifies acute embolism and thrombosis of the left calf muscular vein. Deep vein thrombosis in the calf involves blood clots in deep veins, and muscular calf vein thrombosis may have different clinical outcomes than axial calf vein involvement. This code appears in Medicare billing documentation, though its listing does not guarantee coverage. 2 3 4

Plain-language overview

Deep vein thrombosis is a condition where a blood clot develops in the deep veins, usually in the lower extremities, and a pulmonary embolism occurs if a clot fragment travels to the lungs. Venous thromboembolism refers to deep vein thrombosis, pulmonary embolism, or both. 3

What this code represents

ICD-10-CM code I82.462 represents acute embolism and thrombosis of the left calf muscular vein. The Centers for Medicare and Medicaid Services lists this specific diagnosis code within a billing article for non-invasive peripheral venous vascular studies. 4

Clinical context

Isolated calf deep vein thromboses, also known as distal deep vein thromboses, account for approximately one-half of all deep vein thromboses. Important clinical consequences of calf deep vein thrombosis include proximal extension, venous thromboembolism recurrence, pulmonary embolism, and post-thrombotic syndrome. 1 2

Thrombi in the axial calf veins have different anatomical and physiological characteristics from thrombi in the muscular calf veins. Patients with calf deep vein thrombosis limited to muscular veins might have a lower rate of recurrent venous thromboembolism, resolution, proximal propagation, and pulmonary embolism versus those with axial calf vein involvement. 2

What the sources add

A clinical guideline source discusses the management of venous thromboembolism scenarios including acute deep venous thrombosis in the distal lower extremity veins, while a Medicare billing article lists I82.462 among diagnosis codes for non-invasive peripheral venous vascular studies. 1 4

Coverage and utilization context

The Centers for Medicare and Medicaid Services includes I82.462 in an article titled Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies. The supplied excerpt does not explicitly state that this inclusion guarantees coverage for any specific service. 4

Documentation considerations

The official label for I82.462 specifies acute embolism and thrombosis of the left calf muscular vein, and the Centers for Medicare and Medicaid Services lists related codes for bilateral and unspecified calf muscular veins. The supplied excerpts do not detail specific documentation elements required for this code. 4

Sources

1. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Comparison of clinical outcomes among patients with isolated axial vs muscular calf vein thrombosis: A systematic review and meta-analysis — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
3. Deep Vein Thrombosis and Pulmonary Embolism — cdc.gov; accessed 2026-07-25.
4. Article - Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies (A57594) — cms.gov; accessed 2026-07-25.