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

This code signifies a persistent, open sore on an unspecified area of the calf that is not caused by pressure. The ulceration has progressed to the point where the subcutaneous fat layer is visible. This indicates a significant depth of tissue loss.

Use this code when documentation specifies a chronic, non-pressure ulcer located on the calf, and the wound bed clearly exposes the adipose tissue. This code is appropriate when the specific laterality (right or left calf) is not documented. Documentation should explicitly state "fat layer exposed" or similar terminology.

• Ensure the documentation specifies "non-pressure" to differentiate from pressure ulcers.
• Do not use this code if the laterality (right or left calf) is specified; use the more specific code.
• Always code any associated underlying conditions (e.g., venous insufficiency, diabetes) as primary or secondary diagnoses.