Non-pressure chronic ulcer of right ankle w necrosis of bone

This code signifies a chronic, non-pressure-related ulcer located on the right ankle that has progressed to involve necrosis of the underlying bone. This indicates a severe and deep tissue injury, often associated with compromised circulation or neuropathy, leading to bone death.

Use this code when documentation clearly specifies a chronic, non-pressure ulcer on the right ankle with a confirmed diagnosis of bone necrosis. This typically applies to patients with advanced peripheral vascular disease, diabetes, or other conditions predisposing to severe tissue breakdown and osteomyelitis.

• Ensure documentation explicitly states "non-pressure" to differentiate from pressure ulcers.
• Verify the laterality (right ankle) and the specific tissue involvement (necrosis of bone).
• Code any underlying conditions, such as diabetes mellitus or peripheral artery disease, as additional diagnoses.