Periprosthetic osteolysis of internal prosthetic joint, subs

This code describes bone loss occurring around an internal prosthetic joint, excluding those of the hip, knee, or ankle, due to an inflammatory reaction to wear debris. This osteolysis can lead to loosening of the implant and potential fracture.

Use this code for follow-up encounters when a patient is being treated for or monitored for periprosthetic osteolysis affecting a prosthetic joint in locations such as the shoulder, elbow, wrist, or digits. This applies after the initial treatment or diagnosis has been established.

• Ensure the documentation specifies "other internal prosthetic joint" to differentiate from hip, knee, or ankle.
• Confirm the encounter is for subsequent care, not the initial diagnosis or active treatment of a new complication.
• Look for documentation of imaging findings (e.g., X-ray, CT) confirming bone loss around the implant.