I80.213 Phlebitis and thrombophlebitis of iliac vein, bilateral

ICD-10-CM Code I80.213: Phlebitis and thrombophlebitis of iliac vein, bilateral

ICD-10-CM code I80.213 identifies phlebitis and thrombophlebitis of the iliac vein, bilateral. Official sources list this code alongside distinct right, left, and unspecified iliac vein codes. Clinical guidelines define iliofemoral deep vein thrombosis as thrombus involving the iliac and/or common femoral veins, noting associated adverse outcomes. Medicare billing articles include this code in vascular imaging contexts. 1 3 5 6

Plain-language overview

Code I80.213 represents the diagnosis of phlebitis and thrombophlebitis of the iliac vein, bilateral. The source establishes this exact official description without providing a separate plain-language definition of the terms phlebitis or thrombophlebitis. 5

What this code represents

The code I80.213 is listed in official coding references alongside I80.211 for the right iliac vein, I80.212 for the left iliac vein, and I80.219 for an unspecified iliac vein. This establishes distinct laterality designations within the ICD-10-CM system. 6

Clinical context

A clinical practice guideline defines iliofemoral deep vein thrombosis as thrombus involving the iliac and/or common femoral veins, with or without extension to the inferior vena cava. This definition establishes the anatomical scope of iliac vein involvement. 1

According to a clinical practice guideline, iliofemoral deep vein thrombosis is associated with a higher risk of adverse outcomes relative to femoropopliteal or distal deep vein thrombosis. These outcomes include severe leg pain and swelling, limb ischemia, and increased risk of recurrent venous thromboembolism. 1

Documentation considerations

The existence of separate ICD-10-CM codes for right, left, bilateral, and unspecified iliac veins indicates that documentation distinguishes these anatomical specifics. The sources provide these code options but do not explicitly state a documentation rule regarding laterality. 6

Coverage and utilization context

Centers for Medicare and Medicaid Services billing and coding articles for non-invasive peripheral venous vascular studies and peripheral venous ultrasound include the code I80.213. The articles list the code but do not explicitly state that its presence guarantees coverage for vascular imaging procedures. 3 4

What the sources add

A clinical practice guideline provides clinical definitions and adverse outcomes for iliofemoral deep vein thrombosis, while Medicare billing articles list code I80.213 within administrative contexts. This comparison shows clinical literature and billing references provide different operational contexts for the same anatomical area. 1 3

A surveillance trend report lists historical ICD-9-CM code 451.81 for phlebitis and thrombophlebitis of the iliac vein alongside the current ICD-10-CM codes. The source presents these codes in a list format without explicitly stating a direct mapping between the two code sets. 6

Sources

1. Diagnosis and management of iliofemoral deep vein thrombosis: clinical practice guideline — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
2. The 2023 Society for Vascular Surgery, American Venous Forum, and American Vein and Lymphatic Society clinical practice guidelines for the management of varicose veins of the lower extremities. Part II — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
3. Article - Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies (A57594) — cms.gov; accessed 2026-07-26.
4. Article - Billing and Coding: Peripheral Venous Ultrasound (A57125) — cms.gov; accessed 2026-07-26.
5. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-26.
6. Disclaimer — sentinelinitiative.org; accessed 2026-07-26.