Non-prs chr ulc of left thigh with bone invl w/o evd of necr

This code signifies a persistent open sore on the left thigh that is not caused by pressure, and where the underlying bone is affected. There is no indication of tissue death (necrosis) associated with the ulcer. This condition often arises from underlying vascular insufficiency, diabetes, or other systemic diseases.

Apply this code when documentation clearly states a chronic, non-pressure ulcer located on the left thigh with confirmed involvement of the bone. Supporting documentation should include imaging reports (e.g., X-ray, MRI) confirming bone involvement and a physician's assessment ruling out pressure as the etiology.

• Ensure documentation explicitly states "bone involvement" and "without evidence of necrosis."
• Differentiate from pressure ulcers (L89.-) and ulcers with necrosis (L97.129).
• Always sequence this code after the underlying cause of the ulcer, if known (e.g., diabetes mellitus with ulcer, peripheral vascular disease).