Displaced associated transv/post fx unsp acetabulum, sequela

This code signifies a long-term complication or late effect stemming from a past injury to the acetabulum, specifically involving a displaced fracture that affected both the transverse and posterior columns. The original fracture has healed, but the patient is now experiencing residual issues directly attributable to that prior injury. The specific side of the acetabulum is not documented.

This code is appropriate for documenting conditions such as chronic pain, malunion, nonunion, post-traumatic arthritis, or functional limitations that are a direct consequence of a previously sustained displaced transverse-posterior acetabular fracture. It should be used when the acute phase of the fracture has passed and the current encounter addresses these lasting effects.

• Always sequence this code after the code for the specific sequela (e.g., M16.4 for post-traumatic osteoarthritis).
• Ensure documentation clearly links the current condition to the prior acetabular fracture.
• Verify that the original fracture was indeed a displaced transverse-posterior type and that the laterality is unspecified.