ICD-10-CM 2027
ICD-10 code for peripheral arteries thrombosis
Embolism and thrombosis of arteries of extremities, unspecified
From the official ICD-10-CM alphabetic index entry “Thrombosis, thrombotic (bland) (multiple) (progressive) (silent) (vessel) › peripheral arteries”. Page updated September 29, 2026.
About coding peripheral arteries thrombosis
The ICD-10-CM code for peripheral arteries thrombosis is I74.4 (Embolism and thrombosis of arteries of extremities, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on I74.4.
Within I74, choose I74.4 (arteries of extremities, unspecified) 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), iliac artery (I74.5), other arteries (I74.8) and unspecified artery (I74.9).
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.
More specific peripheral arteries thrombosis codes (official index)
- upper I74.2 — Embolism and thrombosis of arteries of the upper extremities
Common questions about peripheral arteries thrombosis ICD-10 codes
What is the ICD-10 code for peripheral arteries thrombosis?
- I74.4 — Embolism and thrombosis of arteries of extremities, unspecified. More specific codes apply when the documentation supports them: I74.2.
What is the ICD-10 code for upper peripheral arteries thrombosis?
- I74.2 — Embolism and thrombosis of arteries of the upper extremities.
Is I74.4 billable?
- Yes. I74.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I74.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I74.4 as a principal diagnosis.
Is I74.4 a CC or MCC?
- I74.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.