ICD-10 Code I77 – Other disorders of arteries and arterioles (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I77 – Other disorders of arteries and arterioles
What it is
I77 is a broad code for arterial and arteriole disorders that do not fit a more specific diagnosis. Use it when documentation describes an unusual, nonspecific, or other named arterial condition.
Clinical signs
Clinical features vary; refer to documentation. Findings may include abnormal arterial structure or function, vascular pain, diminished pulses, or imaging evidence of arterial disease that is not otherwise classified.
When to use this code
Use I77 when the provider documents an “other” disorder of arteries or arterioles and no more specific ICD-10-CM code applies. It may also fit when the record identifies a vascular disorder of the arterial system but lacks enough detail for a narrower code. Review the note carefully before assigning this category.
Do not use for
Do not use I77 if the record supports a specific arterial diagnosis with its own code, such as aneurysm, embolism, or atherosclerosis. Check documentation for the exact condition before defaulting to this code.
Coding tip
Code the most specific arterial disorder documented; use I77 only when the chart truly supports an unspecified “other” arterial condition.