E13.52

HCC Category Mapping

What This Code Means

A type of diabetes (not type 1 or type 2) causing poor blood circulation in the legs and feet that has resulted in tissue death or gangrene.

Coding Tips

• •Confirm gangrene is documented; this is a more severe condition than E13.51
• •Document the extent and location of gangrene for treatment planning

Clinical Significance

E13.52 represents the most severe vascular complication of other specified diabetes mellitus, with peripheral angiopathy progressing to gangrene. Diabetic gangrene indicates tissue death due to inadequate blood supply and often requires surgical intervention including debridement or amputation. This condition carries significant morbidity, mortality, and resource utilization.

Documentation Requirements

• ✓Documentation must confirm secondary diabetes, peripheral vascular disease with gangrene, and the diabetic etiology.
• ✓The location and extent of gangrene must be specified.
• ✓Wound care documentation, vascular surgery notes, and amputation records if applicable should be present.

Commonly Confused Codes