ICD-10-CM 2027
ICD-10 code for artery tortuous
From the official ICD-10-CM alphabetic index entry “Tortuous › artery”. Page updated September 29, 2026.
About coding artery tortuous
The ICD-10-CM code for artery tortuous is I77.1 (Stricture of artery).
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.
Common questions about artery tortuous ICD-10 codes
What is the ICD-10 code for artery tortuous?
- I77.1 — Stricture of artery.
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.