I25.732

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 using the patient's own tissue), causing severe chest pain that doesn't respond well to treatment. The blocked graft restricts blood flow to the heart muscle.

Coding Tips

• •Verify documentation specifies the graft is nonautologous biological (such as xenograft or allograft) rather than autologous or synthetic to ensure correct code selection
• •Confirm the angina is documented as 'refractory' (resistant to standard treatment) and link this code with the appropriate angina severity code (I20.0) for complete clinical picture

Clinical Significance

This code identifies atherosclerotic disease in a nonautologous biological coronary bypass graft with refractory angina that persists despite maximum medical management. Nonautologous biological grafts may have higher rates of degeneration, and refractory symptoms often indicate severely compromised coronary perfusion. These patients require specialized cardiac care and consideration of advanced therapeutic options.

Documentation Requirements

• ✓History of CABG with nonautologous biological graft (donor or animal tissue) specified
• ✓Evidence of atherosclerotic disease in the biological graft
• ✓Documentation that angina persists despite optimized, maximum tolerated anti-anginal therapy
• ✓Documentation that further revascularization is not feasible or has been exhausted
• ✓Management plan for chronic refractory symptoms

Commonly Confused Codes