ICD-10 Code I75.021 – Atheroembolism of right lower extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I75.021 – Atheroembolism of right lower extremity
What it is
I75.021 identifies atheroembolism affecting the right lower extremity. Use it when cholesterol or atherosclerotic debris has embolized to arteries in the right leg and caused ischemic compromise.
Clinical signs
Clinical features vary; refer to documentation. Common findings include acute or subacute limb ischemia, pain, pallor, coolness, diminished pulses, or tissue changes in the right lower extremity.
When to use this code
Use this code when the provider documents atheroembolism or cholesterol embolization specifically in the right lower extremity. It may be supported by vascular imaging, operative findings, or a clear specialist assessment. If the note only says peripheral arterial disease or embolism without location, check documentation before coding.
Do not use for
Do not use this code for emboli in another limb or for nonspecific atherosclerosis without embolic involvement. If the record does not identify the right lower extremity, use a more accurate documented diagnosis.
Coding tip
Confirm laterality and embolic wording in the provider note before assigning I75.021.