E11.52

HCC Category Mapping

What This Code Means

Type 2 diabetes with narrowing or blockage of blood vessels in the legs and feet WITH tissue death (gangrene). This is a serious condition requiring urgent intervention to prevent amputation.

Coding Tips

• •Gangrene is a serious complication; ensure documentation clearly states gangrene is present before coding this
• •Document the extent and location of gangrene; coordinate with wound care and vascular surgery documentation

Clinical Significance

Type 2 diabetes mellitus with diabetic peripheral angiopathy with gangrene represents the most severe macrovascular complication where peripheral arterial insufficiency has progressed to tissue death. This is a limb-threatening and potentially life-threatening emergency requiring urgent vascular assessment and often surgical intervention including debridement, revascularization, or amputation. The mortality rate within five years of diabetic gangrene diagnosis is substantial.

Documentation Requirements

• ✓Documentation must confirm gangrene in the setting of diabetic peripheral angiopathy in a Type 2 diabetic patient.
• ✓The location, extent, type (dry or wet), and associated findings (infection, osteomyelitis) must be recorded.
• ✓Vascular imaging results, surgical consultation notes, and operative reports are essential supporting documentation.
• ✓Wound care progress and any amputation decisions should be thoroughly documented.

Commonly Confused Codes