ICD-10 Code I25.739 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.739 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris
What it is
This code identifies plaque buildup in a nonautologous biological coronary bypass graft, with angina pectoris documented but not further specified. Use it when the graft itself is the site of atherosclerotic disease and the angina type is not clarified.
Clinical signs
Clinical features may include chest discomfort or other ischemic symptoms in a patient with prior coronary bypass using a biological graft. Clinical features vary; refer to documentation.
When to use this code
Use I25.739 when the record clearly states atherosclerosis affecting a nonautologous biological coronary artery bypass graft and also documents unspecified angina pectoris. The provider should link the graft disease and angina to the same condition. If the angina type is identified, check for a more specific code.
Do not use for
Do not use this code for native coronary artery atherosclerosis without graft involvement. Also avoid it when angina is absent, or when the documentation specifies a different angina type. Check documentation.
Coding tip
Confirm both the graft type and the wording of angina in the note before assigning this code.