Broken internal left knee prosthesis, initial encounter

This code signifies a structural failure or fracture of an artificial joint component within the left knee, specifically an internal prosthesis. This breakage compromises the integrity and function of the implanted device, often leading to pain, instability, or loss of mobility.

Apply this code when a patient presents with a documented fracture or mechanical failure of their left knee replacement components. This is appropriate for the initial visit where the broken prosthesis is diagnosed and treatment planning begins.

• Ensure documentation clearly specifies "broken" or "fractured" rather than just "malfunction" for this specific code.
• Confirm the laterality is "left" and that it's an "internal" prosthesis, not an external device.
• The "A" seventh character indicates an active treatment phase for the initial diagnosis.