Non-prs chronic ulcer of left thigh w necrosis of muscle

This code signifies a persistent open sore on the left thigh, not caused by pressure, that has progressed to involve the muscle tissue, indicating tissue death. It describes a severe, non-healing wound affecting the deeper structures of the left upper leg.

This code is appropriate for patients presenting with a chronic ulcer on the left thigh where clinical documentation confirms the absence of pressure as the etiology and explicitly states the presence of muscle necrosis. Documentation should detail the location, chronicity, and the depth of tissue involvement.

• Always confirm the laterality (left thigh) and the specific tissue involvement (muscle necrosis) from the physician's documentation.
• Distinguish from pressure ulcers (L89.-) and ulcers with less severe tissue involvement (e.g., L97.121, L97.122).
• Code any underlying systemic conditions contributing to the ulcer (e.g., diabetes, peripheral vascular disease) as additional diagnoses.