I20.2

HCC Category Mapping

What This Code Means

Persistent chest pain from reduced heart blood flow that continues despite optimal medical treatment with multiple medications.

Coding Tips

• •Document the medications tried and their doses to establish that standard angina therapy has failed
• •This diagnosis may indicate need for advanced interventions such as cardiac catheterization or newer therapies

Clinical Significance

Refractory angina pectoris is a chronic condition where anginal symptoms persist despite optimal medical therapy and when revascularization is not feasible or has failed. This represents a challenging clinical scenario requiring multimodal pain management, advanced cardiac therapies, and significant healthcare resources. It indicates end-stage ischemic heart disease in many patients.

Documentation Requirements

• ✓Provider documentation explicitly stating refractory or intractable angina
• ✓Evidence of optimal medical therapy (maximum tolerated doses of anti-anginal medications)
• ✓Documentation that revascularization is not an option or has been attempted and failed
• ✓Coronary angiography results showing the basis for non-revascularization
• ✓Functional assessment and impact on quality of life
• ✓Treatment plan including advanced therapies (enhanced external counterpulsation, spinal cord stimulation, etc.)
• ✓Assessment of myocardial viability if applicable

Commonly Confused Codes