Osteolysis, right thigh

This code signifies the pathological destruction or dissolution of bone tissue specifically located in the right thigh. It indicates a process where bone matrix is being resorbed, leading to bone loss and potential structural weakening. This can be a localized or systemic process affecting the femur.

Use this code when documentation clearly states osteolysis affecting the right thigh. This often occurs in the context of prosthetic loosening, infection, tumor invasion, or metabolic bone disorders. Supporting documentation should include imaging reports (X-ray, MRI, CT) confirming bone resorption in the specified anatomical area.

• Ensure laterality is clearly documented (right vs. left thigh); M89.552 is for the left thigh.
• Always look for an underlying cause of the osteolysis, such as a prosthetic joint complication (T84.0-), infection (M86.-), or neoplasm (C79.51), and code it as a secondary diagnosis if applicable.
• Do not confuse with osteonecrosis (M87.-), which involves bone death due to loss of blood supply, rather than active bone resorption.