Non-prs chr ulc of unsp ankl with bone invl w/o evd of necr

This code signifies a persistent, open sore on an unspecified ankle that is not caused by pressure and extends down to the bone. The ulcer shows no signs of tissue death. It indicates a severe stage of ulceration where the underlying bone structure is affected.

This code is appropriate for patients presenting with a chronic ankle ulcer where the medical record clearly documents bone involvement, but necrosis is absent. Documentation should specify the ankle as the affected site without further laterality or specific location details. This code is used when the ulcer's etiology is not related to pressure.

• Ensure documentation explicitly states "bone involvement" and "without necrosis" for the ankle ulcer.
• Avoid using this code if the ulcer is documented as pressure-related; refer to pressure ulcer codes.
• If laterality (right/left) or a more specific ankle location is documented, a more specific code within the L97.3- series should be selected.