L97.3 - Non-pressure chronic ulcer of ankle
L97.31 - Non-pressure chronic ulcer of right ankle
L97.311 - Non-pressure chronic ulcer of right ankle limited to breakdown of skin
L97.312 - Non-pressure chronic ulcer of right ankle with fat layer exposed
L97.313 - Non-pressure chronic ulcer of right ankle with necrosis of muscle
L97.314 - Non-pressure chronic ulcer of right ankle with necrosis of bone
L97.319 - Non-pressure chronic ulcer of right ankle with unspecified severity