I25.759

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 an unspecified type. This is a serious complication that can occur after heart transplantation.

Coding Tips

• •Verify documentation specifies this is atherosclerosis of a TRANSPLANTED heart, not a native heart, as this distinction is critical for accurate coding
• •Confirm the type of angina pectoris is truly unspecified; if documentation indicates stable, unstable, or other specific angina types, use more specific subcodes (I25.751-I25.758)

Clinical Significance

This code represents atherosclerosis in the native coronary arteries of a transplanted heart with unspecified angina. Given the critical nature of coronary disease in transplant recipients and the potential for atypical presentations, every effort should be made to characterize the angina type. The transplant context adds complexity as denervation may mask typical anginal symptoms.

Documentation Requirements

• ✓Confirmed heart transplant history
• ✓Evidence of coronary atherosclerosis in the transplanted heart
• ✓Angina or angina-equivalent symptoms documented without specific classification
• ✓Provider query attempted for angina characterization
• ✓Surveillance and treatment plan for transplant coronary disease

Commonly Confused Codes