ICD-10-CM
ICD-10 code for Clot (blood) circulation: I74.9
The ICD-10-CM index points "Clot (blood) circulation" to I74.9, Embolism and thrombosis of unspecified artery. I74.9 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in I74
A header groups codes and is not billed. A billable code is one you can report.
- I74Arterial embolism and thrombosisHeader
- I74.0Embolism and thrombosis of abdominal aortaHeader
- I74.01Saddle embolus of abdominal aortaBillable
- I74.09Other arterial embolism and thrombosis of abdominal aortaBillable
- I74.1Embolism and thrombosis of other and unspecified parts of aortaHeader
- I74.10Embolism and thrombosis of unspecified parts of aortaBillable
- I74.11Embolism and thrombosis of thoracic aortaBillable
- I74.19Embolism and thrombosis of other parts of aortaBillable
- I74.2Embolism and thrombosis of arteries of the upper extremitiesBillable
- I74.3Embolism and thrombosis of arteries of the lower extremitiesBillable
- I74.4Embolism and thrombosis of arteries of extremities, unspecifiedBillable
- I74.5Embolism and thrombosis of iliac arteryBillable
- I74.8Embolism and thrombosis of other arteriesBillable
- I74.9Embolism and thrombosis of unspecified arteryBillable
Code first
The CDC tabular list says to report the code named here before this one.
From I74. A note on a category applies to every code under it.
Code first embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2)
Code first embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-)
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From I74. A note on a category applies to every code under it.
- I75.-Atheroembolism
- I63.0-I63.2, I65.1Basilar embolism and thrombosis
- I63.0-I63.2, I65.2Carotid embolism and thrombosis
- I63.3-I63.5, I66.-Cerebral embolism and thrombosis
- I21-I25Coronary embolism and thrombosis
- K55.0-Mesenteric embolism and thrombosis
- H34.-Ophthalmic embolism and thrombosis
- I63.0-I63.2, I65.9Precerebral embolism and thrombosis NOS
- I26.-Pulmonary embolism and thrombosis
- N28.0Renal embolism and thrombosis
- H34.-Retinal embolism and thrombosis
- I76Septic embolism and thrombosis
- I63.0-I63.2, I65.0Vertebral embolism and thrombosis
Related conditions
Related pages
- I74.9 code detailsNotes, nearby codes, CMS-HCC group
- Category I74Every code under it
- Chapter 9Diseases of the circulatory system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Clot (blood) circulation?
The ICD-10-CM index points "Clot (blood) circulation" to I74.9, Embolism and thrombosis of unspecified artery. I74.9 is a billable code.
Is I74.9 billable?
Yes. I74.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to I74.9?
The CDC tabular list gives 13 Excludes2 notes (may be coded together when both are documented) for I74.9 and the categories above it. They are listed on this page.
What chapter is I74.9 in?
Chapter 9. Diseases of the circulatory system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.