Periprosthetic osteolysis of internal prosthetic joint, init

This code signifies the breakdown of bone tissue around an internal prosthetic joint, excluding those of the hip, knee, or ankle, due to an inflammatory reaction to wear debris from the implant. This process, known as periprosthetic osteolysis, can lead to implant loosening and pain.

Use this code when documenting the initial encounter for a patient presenting with symptoms or radiographic evidence of bone loss surrounding a prosthetic joint in locations such as the shoulder, elbow, or wrist. This applies when the osteolysis is attributed to the body's reaction to the implant materials.

• Ensure the documentation clearly specifies an "other internal prosthetic joint" to differentiate from hip, knee, or ankle replacements.
• Confirm this is the initial encounter for the osteolysis, not a subsequent or sequela encounter.
• Look for documentation of implant wear debris or inflammatory response as the underlying cause of the bone resorption.