Non-prs chr ulcer of unsp calf with msl invl w/o evd of necr

This code signifies a persistent open sore on an unspecified calf that is not caused by pressure. The ulceration extends into the muscle tissue but does not show signs of dead tissue. This indicates a deeper wound affecting the muscular layer of the lower leg.

Apply this code when documentation specifies a chronic, non-pressure ulcer located on the calf, with clear involvement of the muscle layer. This code is appropriate when necrosis is explicitly ruled out or not documented. Supporting documentation should include wound depth assessment and etiology.

• Ensure documentation clearly differentiates between "unspecified calf" and specific left or right calf involvement.
• Verify the absence of necrosis; if present, a different code from the L97.2- series would be more appropriate.
• Always sequence this code after the underlying cause of the ulcer, if known (e.g., venous insufficiency, arterial disease).