Is I82.599 a billable ICD-10-CM code?

Yes. I82.599 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does I82.599 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 I82.599?

I82.599 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 I82.599 (I82.5) and apply to it just the same.

I82.599

I82.599 — Chronic embolism and thrombosis of other specified deep vein of unspecified lower extremity

Billable / specific codeICD-10-CM

I82.599 is a billable, specific ICD-10-CM code for chronic embolism and thrombosis of other specified deep vein of unspecified lower extremity. It is valid for submission on a claim.

Excludes1 inherited from the categories above I82.599

These are not written on I82.599, but they bind it: a note on a category applies to every code beneath it. Billing I82.599 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 I82.599

Also inherited, and the opposite of Excludes1: these conditions are not part of I82.599, 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

I82.599 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

I82.599 is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A60255Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
A60256Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
A60271Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia
A60272Billing and Coding: MolDX: Genetic Testing for Hereditary Thrombophilia

Code history

I82.599 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 I82.59. If I82.599 is not quite right, the correct code is usually one of these.

Questions about I82.599

Is I82.599 a billable ICD-10-CM code?: Yes. I82.599 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I82.599 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 I82.599?: I82.599 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 I82.599 (I82.5) and apply to it just the same.