Athscl autologous vein CABG w ang pctrs w documented spasm

This code signifies the presence of atherosclerosis specifically affecting an autologous vein graft used in a coronary artery bypass procedure. The patient also experiences angina pectoris, and this angina is specifically documented as being due to coronary artery spasm.

Use this code when documentation clearly indicates atherosclerotic changes within a patient's autologous vein coronary artery bypass graft(s) and accompanying angina pectoris that is explicitly attributed to vasospasm. This typically applies to patients with a history of CABG who are now presenting with new or worsening anginal symptoms linked to graft disease and spasm.

• Ensure documentation explicitly states "autologous vein" graft and "documented spasm" for the angina.
• Do not code with I20.1, as this is an Excludes1 condition indicating angina with spasm without graft atherosclerosis.
• Look for supporting diagnostic findings such as angiography or intravascular ultrasound confirming graft atherosclerosis and evidence of spasm.