Non-prs chr ulcer of unsp heel and midfoot w fat layer expos

This code signifies a persistent open sore on the heel or midfoot, not caused by pressure, that has eroded through the epidermis and dermis, exposing the subcutaneous fat layer. This ulceration indicates significant tissue loss extending beyond the skin.

Apply this code when documentation specifies a chronic, non-pressure ulcer located on an unspecified heel or midfoot, with the wound depth clearly indicating exposure of the fat layer. This is appropriate for ulcers resulting from conditions like venous insufficiency, arterial disease, or diabetic neuropathy, where pressure is not the primary etiology.

• Ensure the documentation explicitly states "non-pressure" to differentiate from pressure ulcers (L89.-).
• Verify the anatomical site is "heel" or "midfoot" and that laterality is unspecified.
• Confirm the depth of the ulcer reaches the "fat layer exposed" to accurately capture the severity.