I74.3 – Embolism and thrombosis of arteries of the lower extremities
ICD-10-CM 2027 diagnosis code · Diseases of arteries, arterioles and capillaries
ICD-10-CM code
I74.3
- Code
I74.3(claims format:I743)- Description
- Embolism and thrombosis of arteries of the lower extremities
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I70-I79 Diseases of arteries, arterioles and capillaries
- Parent codes
- I74
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
I74 – Arterial embolism and thrombosis
Includes:
- embolic infarction
- embolic occlusion
- thrombotic infarction
- thrombotic occlusion
Excludes2 (not included here):
- 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)
Index terms for I74.3
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in I74
- I74.0 – Embolism and thrombosis of abdominal aortaHeader
- I74.1 – Embolism and thrombosis of other and unspecified parts of aortaHeader
- I74.2 – Embolism and thrombosis of arteries of the upper extremitiesBillable
- I74.4 – Embolism and thrombosis of arteries of extremities, unspecifiedBillable
- I74.5 – Embolism and thrombosis of iliac arteryBillable
- I74.8 – Embolism and thrombosis of other arteriesBillable
- I74.9 – Embolism and thrombosis of unspecified arteryBillable
Frequently asked questions
What is ICD-10 code I74.3?
I74.3 is the ICD-10-CM code for embolism and thrombosis of arteries of the lower extremities, in the block I70-I79 (Diseases of arteries, arterioles and capillaries).
Is I74.3 a billable code?
Yes. I74.3 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does I74.3 belong to?
It belongs to category I74 – Arterial embolism and thrombosis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.