Non-prs chr ulc of unsp thigh with msl invl w/o evd of necr

This code signifies a chronic, non-pressure-related ulcer located on an unspecified thigh, where the ulceration extends into the muscle tissue. There is no evidence of tissue death (necrosis) associated with this ulcer. This typically indicates a deep wound that has not healed in a timely manner.

Use this code when documentation clearly specifies a chronic ulcer on the thigh, not caused by pressure, and explicitly states involvement of the muscle layer. The medical record must also confirm the absence of necrosis. This code is appropriate for conditions such as venous stasis ulcers, arterial ulcers, or diabetic ulcers affecting the thigh, provided the depth and lack of necrosis are documented.

• Ensure the documentation specifies "unspecified thigh" and "muscle involvement" without necrosis.
• Distinguish from pressure ulcers (L89.-) and ulcers with necrosis (L97.106).
• Always sequence this code after the underlying cause of the ulcer, if known (e.g., chronic venous insufficiency, diabetes mellitus).