Is I82.549 a billable ICD-10-CM code?

Yes. I82.549 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I82.549 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 I82.549?

I82.549 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 I82.549 (I82.5) and apply to it just the same.

I82.549

I82.549 — Chronic embolism and thrombosis of unspecified tibial vein

Billable / specific codeICD-10-CM

I82.549 is a billable, specific ICD-10-CM code for chronic embolism and thrombosis of unspecified tibial vein. It is valid for submission on a claim.

Excludes1 inherited from the categories above I82.549

These are not written on I82.549, but they bind it: a note on a category applies to every code beneath it. Billing I82.549 with anything listed here is a denial.

Written on I82.5 — Chronic embolism and thrombosis of deep veins of lower extremity

personal history of venous embolism and thrombosis (Z86.718)

Excludes2 inherited from the categories above I82.549

Also inherited, and the opposite of Excludes1: these conditions are not part of I82.549, 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

I82.549 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.

Code history

I82.549 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 I82.54. If I82.549 is not quite right, the correct code is usually one of these.

Questions about I82.549

Is I82.549 a billable ICD-10-CM code?: Yes. I82.549 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I82.549 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 I82.549?: I82.549 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 I82.549 (I82.5) and apply to it just the same.