Non-prs chr ulc unsp prt unsp lw leg w bne invl w/o evd necr

This code signifies a chronic, non-pressure-related ulcer located on an unspecified part of an unspecified lower leg, where the ulceration has progressed to involve the underlying bone. There is no evidence of tissue necrosis associated with this bone involvement. This typically indicates a deep, long-standing wound that has eroded through soft tissue layers to reach the osseous structure.

Use this code for patients presenting with a chronic lower leg ulcer where the physician's documentation explicitly states bone involvement without necrosis. This diagnosis is appropriate when the exact location on the lower leg (e.g., ankle, calf) is not specified, and the laterality (left/right) is also undetermined. Documentation should clearly describe the ulcer's chronicity, non-pressure etiology, and the depth reaching bone.

• Ensure documentation specifies "unspecified lower leg" and "unspecified part" to avoid more specific codes.
• Verify the absence of necrosis; if necrosis is present, a different code from the L97 series would be more appropriate.
• Always sequence this code after any underlying systemic conditions contributing to the ulcer, such as diabetes or peripheral vascular disease.