I82.4Y1 — Acute embolism and thrombosis of unspecified deep veins of right proximal lower extremity
I82.4Y1 is a billable, specific ICD-10-CM code for acute embolism and thrombosis of unspecified deep veins of right proximal lower extremity. It is valid for submission on a claim.
Excludes2 inherited from the categories above I82.4Y1
Also inherited, and the opposite of Excludes1: these conditions are not part of I82.4Y1, but a patient can have both, so you may code both.
Risk adjustment
I82.4Y1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 267 Deep Vein Thrombosis and Pulmonary Embolism0.294 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
I82.4Y1 is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56541Billing and Coding: Biomarkers Overview
- A56675Billing and Coding: Homocysteine Level, Serum
- A56697Billing and Coding: Non-Invasive Vascular Studies
- A56758Billing and Coding: Non-Invasive Vascular Studies
Code history
I82.4Y1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share I82.4Y. If I82.4Y1 is not quite right, the correct code is usually one of these.
Questions about I82.4Y1
- Is I82.4Y1 a billable ICD-10-CM code?
- Yes. I82.4Y1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I82.4Y1 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89).