ICD-10 Code I25.111 – Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.111 – Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
What it is
This code identifies coronary atherosclerosis in a native coronary artery when angina pectoris is present and coronary spasm has been documented. Use it when the record clearly links the ischemic chest pain to this specific disease pattern.
Clinical signs
Documentation may describe exertional or rest chest pain, ischemic symptoms, or angina confirmed by the clinician. Clinical features vary; refer to documentation for evidence of documented coronary spasm and native-vessel disease.
When to use this code
Use I25.111 when the provider states atherosclerotic heart disease of a native coronary artery with angina pectoris and specifically documents spasm. It fits cases where the diagnosis is established in the chart, not merely suspected. If the note only says coronary artery disease or angina without spasm, check documentation.
Do not use for
Do not use this code for angina without documented spasm, or for disease involving bypass grafts instead of native coronary arteries. If the documentation is incomplete or conflicting, check documentation before coding.
Coding tip
Assign the code only when both angina pectoris and documented spasm are clearly stated together in the provider record.