Disp fx of post column of r acetab, subs for fx w nonunion

This code signifies a displaced fracture affecting the posterior column of the right acetabulum, specifically the ilioischial portion. The fracture has failed to heal properly, indicating a nonunion, and the patient is presenting for follow-up care related to this ongoing issue.

This code is appropriate for encounters where a patient with a previously diagnosed displaced posterior column acetabular fracture on the right side is being managed for a confirmed nonunion. This includes visits for evaluation of the nonunion, planning for further intervention (e.g., revision surgery), or ongoing conservative management of the unhealed fracture.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for this specific fracture.
• Verify the laterality (right) and the specific column (posterior/ilioischial) of the acetabulum are documented.
• Do not use this code for initial treatment or routine follow-up of a healing fracture; it is specific to nonunion.