Non-pressure chronic ulcer of right calf w fat layer exposed

This code signifies a persistent, open sore on the right calf that has eroded through the skin and subcutaneous tissue, exposing the underlying adipose (fat) layer. This ulceration is not caused by pressure and indicates a significant tissue defect requiring medical attention.

Apply this code when documentation clearly describes a non-pressure chronic ulcer located specifically on the right calf, with the depth of the ulcer extending to and exposing the fat layer. Supporting documentation should include the anatomical site, chronicity, etiology (excluding pressure), and the specific tissue depth.

• Ensure the documentation specifies "right calf" and not a more general lower leg site.
• Verify the ulcer is explicitly stated as "non-pressure" to differentiate from pressure ulcers.
• Confirm the depth of the ulcer is documented as exposing the fat layer; do not use if only skin or subcutaneous tissue is involved without fat exposure.