I25.758

HCC Category Mapping

What This Code Means

This code describes a condition where fatty deposits have built up in the blood vessels of a heart that was transplanted into a patient, causing chest pain or discomfort of a type other than the typical forms. This is a serious complication that can develop after heart transplantation.

Coding Tips

• •This code requires documentation of both the atherosclerosis of the transplanted heart AND the specific type of angina present; verify the angina type is documented as 'other forms' rather than typical angina, vasospastic, or microvascular angina
• •Always confirm the heart is a transplanted organ (not native) and that atherosclerosis is present in the coronary arteries; this is a combination code so both conditions must be clearly documented in the medical record

Clinical Significance

This code identifies atherosclerosis in the native coronary arteries of a transplanted heart with angina that is characterized but does not fit the unstable, vasospastic, or refractory categories. In transplant recipients, even stable exertional angina represents significant allograft vasculopathy that warrants close surveillance and potential adjustment of immunosuppressive therapy.

Documentation Requirements

• ✓Confirmed heart transplant history
• ✓Evidence of atherosclerotic disease in native coronary arteries of the transplanted heart
• ✓Angina symptoms documented with characterization excluding unstable, vasospastic, and refractory types
• ✓Surveillance plan for allograft vasculopathy progression
• ✓Immunosuppression assessment and optimization

Commonly Confused Codes