I74.9: Embolism and thrombosis of unspecified artery
I74.9 is a billable, specific ICD-10-CM code for embolism and thrombosis of unspecified artery. It is valid for submission on a claim.
Check I74.9 with the rest of the claim: free scrubberExcludes2 inherited from the categories above I74.9
Not part of this code, but both may be coded when both are present.
Written on I74: Arterial embolism and thrombosis
- atheroembolism (I75.-)
- basilar embolism and thrombosis (I63.0-I63.2, I65.1)
- carotid embolism and thrombosis (I63.0-I63.2, I65.2)
- cerebral embolism and thrombosis (I63.3-I63.5, I66.-)
- coronary embolism and thrombosis (I21-I25)
- mesenteric embolism and thrombosis (K55.0-)
- ophthalmic embolism and thrombosis (H34.-)
- precerebral embolism and thrombosis NOS (I63.0-I63.2, I65.9)
- pulmonary embolism and thrombosis (I26.-)
- renal embolism and thrombosis (N28.0)
- retinal embolism and thrombosis (H34.-)
- septic embolism and thrombosis (I76)
- vertebral embolism and thrombosis (I63.0-I63.2, I65.0)
Risk adjustment
I74.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 264 Vascular Disease with Complications0.455 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. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I74.9 is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52868Billing and Coding: Transesophageal Echocardiography (TEE)
- A52992Billing and Coding: Non-Invasive Cerebrovascular Arterial Studies
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
- A56809Billing and Coding: Transesophageal Echocardiography (TEE)
Alphabetic index entries that lead here
- Embolism(multiple) (paradoxical)
- Clot›circulation
- Embolism›artery
- Thrombosis, thrombotic›artery, arteries(postinfectional)
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under I74
- I74.0Embolism and thrombosis of abdominal aorta
- I74.1Embolism and thrombosis of other and unspecified parts of aorta
- I74.2Embolism and thrombosis of arteries of the upper extremities
- I74.3Embolism and thrombosis of arteries of the lower extremities
- I74.4Embolism and thrombosis of arteries of extremities, unspecified
- I74.5Embolism and thrombosis of iliac artery
- I74.8Embolism and thrombosis of other arteries