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ICD-10-CM 2027

ICD-10 code for Aortoiliac obstruction

I74.09

Other arterial embolism and thrombosis of abdominal aorta

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Obstruction, obstructed, obstructive › aortoiliac”. Page updated September 29, 2026.

About coding Aortoiliac obstruction

The ICD-10-CM code for Aortoiliac obstruction is I74.09 (Other arterial embolism and thrombosis of abdominal aorta).

Within I74.0, choose I74.09 (Other arterial embolism and thrombosis of abdominal aorta) only when documentation doesn't support a more specific option: saddle embolus of abdominal aorta (I74.01).

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 Aortoiliac obstruction ICD-10 codes

What is the ICD-10 code for Aortoiliac obstruction?

I74.09 — Other arterial embolism and thrombosis of abdominal aorta.

Is I74.09 billable?

Yes. I74.09 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I74.09 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I74.09 as a principal diagnosis.

Is I74.09 a CC or MCC?

I74.09 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.