ICD-10-CM 2027
ICD-10 code for arterial insufficiency
From the official ICD-10-CM alphabetic index entry “Insufficiency, insufficient › arterial”. Page updated September 29, 2026.
About coding arterial insufficiency
The ICD-10-CM code for arterial insufficiency is I77.1 (Stricture of artery). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I77.1.
Within I77 (other disorders of arteries and arterioles), I77.1 is specifically for stricture of artery. Related codes cover arteriovenous fistula, acquired (I77.0), rupture of artery (I77.2), arterial fibromuscular dysplasia (I77.3), celiac artery compression syndrome (I77.4), necrosis of artery (I77.5), arteritis, unspecified (I77.6), other arterial dissection (I77.7), other specified disorders of arteries and arterioles (I77.8) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific arterial insufficiency codes (official index)
- basilar G45.0 — Vertebro-basilar artery syndrome
- carotid (hemispheric) G45.1 — Carotid artery syndrome (hemispheric)
- cerebral I67.81 — Acute cerebrovascular insufficiency
- coronary (acute or subacute) I24.89 — Other forms of acute ischemic heart disease
- mesenteric K55.1 — Chronic vascular disorders of intestine
- peripheral I73.9 — Peripheral vascular disease, unspecified
- precerebral (multiple) (bilateral) G45.2 — Multiple and bilateral precerebral artery syndromes
- vertebral G45.0 — Vertebro-basilar artery syndrome
Common questions about arterial insufficiency ICD-10 codes
What is the ICD-10 code for arterial insufficiency?
- I77.1 — Stricture of artery. More specific codes apply when the documentation supports them: G45.0, G45.1, I67.81, I24.89 and others below.
What is the ICD-10 code for basilar arterial insufficiency?
- G45.0 — Vertebro-basilar artery syndrome.
What is the ICD-10 code for carotid arterial insufficiency?
- G45.1 — Carotid artery syndrome (hemispheric).
What is the ICD-10 code for cerebral arterial insufficiency?
- I67.81 — Acute cerebrovascular insufficiency.
What is the ICD-10 code for coronary arterial insufficiency?
- I24.89 — Other forms of acute ischemic heart disease.
What is the ICD-10 code for mesenteric arterial insufficiency?
- K55.1 — Chronic vascular disorders of intestine.
What is the ICD-10 code for peripheral arterial insufficiency?
- I73.9 — Peripheral vascular disease, unspecified.
Is I77.1 billable?
- Yes. I77.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.1 as a principal diagnosis.
Is I77.1 a CC or MCC?
- No. I77.1 is neither a CC nor an MCC under MS-DRG v44.0.