I25.739

HCC Category Mapping

What This Code Means

This code describes a condition where fatty deposits have built up in a man-made biological heart bypass graft (not from the patient's own tissue), causing chest pain or discomfort of an unspecified type. The narrowing of this graft reduces blood flow to the heart muscle.

Coding Tips

• •Verify the type of bypass graft material used (nonautologous biological) in the operative report or cardiology documentation before assigning this code
• •Ensure the angina type is documented; if a specific type of angina is identified (stable, unstable, etc.), use a more specific code rather than 'unspecified'

Clinical Significance

This code represents atherosclerosis of a nonautologous biological coronary bypass graft with angina pectoris where the specific angina type is not documented. While it captures the clinical scenario of biological graft disease with ischemic symptoms, the unspecified designation indicates incomplete documentation. Provider query for angina characterization should be attempted to optimize code specificity.

Documentation Requirements

• ✓History of CABG with nonautologous biological graft type documented
• ✓Evidence of atherosclerosis in the biological graft
• ✓Angina symptoms present but type not further specified in the record
• ✓Documented query attempt to provider for angina classification
• ✓Treatment plan addressing both graft disease and angina symptoms

Commonly Confused Codes