L97.904 - Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of bone
L97.9 - Non-pressure chronic ulcer of unspecified part of lower leg L97.90 - Non-pressure chronic ulcer of unspecified part of unspecified lower leg L97.904 - Non-pressure chronic ulcer of unspecified part of unspecified lower leg with necrosis of bone