ICD-10-CM 2027
ICD-10 code for circulation clot
Embolism and thrombosis of unspecified artery
From the official ICD-10-CM alphabetic index entry “Clot (blood) › circulation”. Page updated September 29, 2026.
About coding circulation clot
The ICD-10-CM code for circulation clot is I74.9 (Embolism and thrombosis of unspecified artery).
Within I74, choose I74.9 (unspecified artery) only when documentation doesn't support a more specific option: abdominal aorta (I74.0), other and unspecified parts of aorta (I74.1), arteries of the upper extremities (I74.2), arteries of the lower extremities (I74.3), arteries of extremities, unspecified (I74.4), iliac artery (I74.5) and other arteries (I74.8).
Code first: embolism and thrombosis complicating abortion or ectopic or molar pregnancy (O00-O07, O08.2) and embolism and thrombosis complicating pregnancy, childbirth and the puerperium (O88.-).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Common questions about circulation clot ICD-10 codes
What is the ICD-10 code for circulation clot?
- I74.9 — Embolism and thrombosis of unspecified artery.
Is I74.9 billable?
- Yes. I74.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I74.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I74.9 as a principal diagnosis.
Is I74.9 a CC or MCC?
- I74.9 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.