Disp fx of post wall of right acetab, subs for fx w nonunion

This code signifies a fracture of the posterior wall of the right acetabulum that is no longer in its anatomical position (displaced) and has failed to heal properly after an initial treatment. It indicates that the patient is receiving ongoing care for this specific nonunion.

This code is appropriate for follow-up encounters where a patient is being managed for a previously diagnosed and treated displaced posterior wall fracture of the right acetabulum, and the fracture has not united. This includes visits for continued conservative management, evaluation for surgical intervention, or post-operative care following a procedure to address the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the "posterior wall" of the "right acetabulum."
• Verify that the encounter is for follow-up care of the nonunion, not the initial treatment.
• Always sequence this code after any definitive treatment codes for the nonunion (e.g., surgical procedures).