Arterial embolism and thrombosis (I74) ICD-10-CM
The I74 code range covers arterial embolism and thrombosis with 14 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- embolic infarction
- embolic occlusion
- thrombotic infarction
- thrombotic occlusion
Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- embolism and thrombosis complicating abortion or ectopic or molar pregnancy O00 O07 O08.2
- embolism and thrombosis complicating pregnancy, childbirth and the puerperium O88
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- 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
Codes in the I74 Range 14 codes · 11 billable
- I74 Arterial embolism and thrombosisNon-billable
- I74.0 Embolism and thrombosis of abdominal aortaNon-billable
- I74.01 Saddle embolus of abdominal aorta
- I74.09 Other arterial embolism and thrombosis of abdominal aorta
- I74.1 Embolism and thrombosis of other and unspecified parts of aortaNon-billable
- I74.10 Embolism and thrombosis of unspecified parts of aorta
- I74.11 Embolism and thrombosis of thoracic aorta
- I74.19 Embolism and thrombosis of other parts of aorta
- I74.2 Embolism and thrombosis of arteries of the upper extremities
- I74.3 Embolism and thrombosis of arteries of the lower extremities
- I74.4 Embolism and thrombosis of arteries of extremities, unspecified
- I74.5 Embolism and thrombosis of iliac artery
- I74.8 Embolism and thrombosis of other arteries
- I74.9 Embolism and thrombosis of unspecified artery
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the I74 range.
Embolism
Blocking of a blood vessel by an embolus which can be a blood clot or other undissolved material in the blood stream.
Leriche Syndrome
A condition caused by occlusion of terminal aorta, the primary branches of the ABDOMINAL AORTA, as in aortoiliac obstruction. Leriche syndrome usually occurs in males and is characterized by IMPOTENCE, absence of a pulse in the femoral arteries, weakness and numbness in the lower back, buttocks, hips, and lower limbs.
About the I74 Code Range
Embolism and thrombosis are types of artery blockage. These codes identify the artery involved.
Aorta codes distinguish the abdominal aorta from other or unspecified parts. Within the abdominal aorta, I74.01 identifies a saddle embolus, while I74.09 covers other embolism and thrombosis. Other aorta codes distinguish the thoracic aorta from other or unspecified parts.
Codes for arteries in the arms and legs distinguish upper, lower, and unspecified extremities. Separate codes identify the iliac artery, other arteries, and an unspecified artery.
Questions About This Page
How many billable codes are in the I74 range?
Of the 14 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the I74 range classify?
The range classifies arterial embolism and thrombosis. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
