ICD-10-CM 2027
ICD-10 code for arteriopathy
From the official ICD-10-CM alphabetic index entry “Arteriopathy”. Page updated September 29, 2026.
About coding arteriopathy
The ICD-10-CM code for arteriopathy is I77.9 (Disorder of arteries and arterioles, 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 I77.9.
Within I77, choose I77.9 (Disorder of arteries and arterioles, unspecified) only when documentation doesn't support a more specific option: arteriovenous fistula, acquired (I77.0), stricture of artery (I77.1), 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) 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 arteriopathy codes (official index)
- cerebral autosomal dominant, with subcortical infarcts and leukoencephalopathy (CADASIL) I67.850 — Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
Common questions about arteriopathy ICD-10 codes
What is the ICD-10 code for arteriopathy?
- I77.9 — Disorder of arteries and arterioles, unspecified. More specific codes apply when the documentation supports them: I67.850.
Is I77.9 billable?
- Yes. I77.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.9 as a principal diagnosis.
Is I77.9 a CC or MCC?
- No. I77.9 is neither a CC nor an MCC under MS-DRG v44.0.