Non-pressure chronic ulcer of back with necrosis of bone

This code signifies a long-standing open sore on the patient's back that is not caused by pressure, and where the ulceration has progressed to involve the underlying bone tissue, causing its death. This indicates a severe, deep tissue injury requiring significant medical intervention.

Apply this code when documentation explicitly states a chronic, non-pressure ulcer located on the back with confirmed necrosis of bone. This typically requires imaging studies (e.g., X-ray, MRI) or surgical findings to confirm bone involvement.

• Ensure documentation clearly distinguishes between pressure and non-pressure etiology.
• Confirm that "necrosis of bone" is explicitly stated, not just "deep tissue injury" or "osteomyelitis."
• Sequence this code after any underlying systemic conditions contributing to the ulcer (e.g., diabetes mellitus with complications).