ICD-10 Code I77.5 – Necrosis of artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I77.5 – Necrosis of artery
What it is
I77.5 identifies necrosis, or tissue death, affecting an artery. Use it when documentation states arterial necrosis without a more specific vascular diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Findings may include arterial wall damage, ischemic changes, or evidence of compromised blood flow, but you should code only what is explicitly documented.
When to use this code
Use I77.5 when the provider documents necrosis of an artery as the diagnosed condition. It may appear in reports describing arterial tissue breakdown, infarction, or necrotic vascular change, if no more specific code is given.
If the record names a different vascular disorder as the primary diagnosis, follow the documented condition and code the artery necrosis only when it is clearly stated.
Do not use for
Do not use this code for arterial occlusion, embolism, or generalized ischemia unless necrosis of the artery is specifically documented. Check documentation for a more precise vascular diagnosis.
Coding tip
Code I77.5 only from explicit provider wording; if the note is vague, query for clarification.