Disp fx of med wall of left acetab, subs for fx w nonunion

This code signifies a fracture of the inner wall of the left hip socket that has shifted out of its normal alignment and has failed to heal properly. The patient is being seen for ongoing management of this unhealed fracture after the initial treatment.

Apply this code when documenting follow-up care for a patient with a previously diagnosed displaced fracture of the medial wall of the left acetabulum where nonunion has been confirmed. This includes situations where surgical intervention for nonunion is being planned or has been performed, or when conservative management for nonunion is ongoing.

• Ensure documentation clearly states "nonunion" and specifies the "left" acetabulum and "medial wall."
• Verify that the encounter is for subsequent care, not the initial treatment of the fracture.
• Always sequence this code after any associated external cause codes, if applicable.