Non-pressure chronic ulcer of r up arm with necrosis of bone

This code signifies a persistent, non-pressure-related open sore on the right upper arm that has progressed to involve the underlying bone tissue, indicating osteonecrosis. This type of ulcer is typically slow-healing and can be associated with various systemic conditions or localized trauma, excluding pressure as the primary cause.

Use this code when documentation clearly specifies a chronic, non-pressure ulcer located on the patient's right upper arm with evidence of bone necrosis. This often occurs in patients with peripheral vascular disease, diabetes, or other conditions compromising tissue perfusion, and requires imaging (e.g., X-ray, MRI) or surgical findings to confirm bone involvement.

• Always confirm the laterality (right vs. left) and specific anatomical site (upper arm).
• Ensure the documentation explicitly states "non-pressure" and "chronic" to differentiate from acute or pressure ulcers.
• Look for diagnostic imaging reports or operative notes confirming necrosis of bone to support the highest level of specificity.