ICD-10 Code I25.84 – Coronary atherosclerosis due to calcified coronary lesion (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.84 – Coronary atherosclerosis due to calcified coronary lesion
What it is
This code identifies coronary artery disease caused by atherosclerotic plaque with calcification in the coronary vessels. It tells you the narrowing is specifically linked to a calcified coronary lesion.
Clinical signs
Clinical features vary; refer to documentation. Common references describe coronary calcification on imaging, evidence of coronary atherosclerosis, or a documented calcified coronary lesion supporting the diagnosis.
When to use this code
Use this code when the provider documents coronary atherosclerosis due to a calcified coronary lesion. It may apply after imaging, catheterization, or other clinical evaluation identifies calcified plaque in the coronary arteries. Code only when the documentation clearly links the atherosclerosis to the calcified lesion.
Do not use for
Do not use it for nonspecific coronary artery disease without mention of calcification. Check documentation if the record only says coronary calcium, coronary plaque, or atherosclerosis without a causal link.
Coding tip
Look for the exact provider wording tying coronary atherosclerosis to a calcified lesion before assigning I25.84.