Is I82.403 a billable ICD-10-CM code?

Yes. I82.403 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I82.403 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).

What cannot be coded together with I82.403?

I82.403 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I82.403 (I82.40) and apply to it just the same.

I82.403

I82.403 — Acute embolism and thrombosis of unspecified deep veins of lower extremity, bilateral

Billable / specific codeICD-10-CMbilateral

I82.403 is a billable, specific ICD-10-CM code for acute embolism and thrombosis of unspecified deep veins of lower extremity, bilateral. It is valid for submission on a claim.

Excludes1 inherited from the categories above I82.403

These are not written on I82.403, but they bind it: a note on a category applies to every code beneath it. Billing I82.403 with anything listed here is a denial.

Written on I82.40 — Acute embolism and thrombosis of unspecified deep veins of lower extremity

acute embolism and thrombosis of unspecified deep veins of distal lower extremity (I82.4Z-)
acute embolism and thrombosis of unspecified deep veins of proximal lower extremity (I82.4Y-)

Excludes2 inherited from the categories above I82.403

Also inherited, and the opposite of Excludes1: these conditions are not part of I82.403, but a patient can have both, so you may code both.

Written on I82 — Other venous embolism and thrombosis

venous embolism and thrombosis (of):
cerebral (I63.6, I67.6)
coronary (I21-I25)
intracranial and intraspinal, septic or NOS (G08)
intracranial, nonpyogenic (I67.6)
intraspinal, nonpyogenic (G95.1)
mesenteric (K55.0-)
portal (I81)
pulmonary (I26.-)

Risk adjustment

I82.403 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

I82.403 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
A56758Billing and Coding: Non-Invasive Vascular Studies
A57590Billing and Coding: Non-Coronary Vascular Stents

Code history

I82.403 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 I82.40. If I82.403 is not quite right, the correct code is usually one of these.

Questions about I82.403

Is I82.403 a billable ICD-10-CM code?: Yes. I82.403 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I82.403 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).
What cannot be coded together with I82.403?: I82.403 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above I82.403 (I82.40) and apply to it just the same.