Displaced transverse fx left acetab, subs for fx w nonunion

This code signifies a fracture of the left acetabulum, specifically involving the transverse portion, that has become displaced. The patient is in a subsequent phase of care for this injury, and the fracture has failed to heal properly, indicating a nonunion.

Apply this code when documenting follow-up care for a patient with a previously diagnosed displaced transverse fracture of the left acetabulum. This is appropriate when the physician explicitly identifies and treats the ongoing issue of the fracture not uniting.

• Ensure documentation clearly states "left" acetabulum and "transverse" fracture.
• Verify that the encounter is for follow-up care and not the initial treatment.
• Look for physician documentation explicitly mentioning "nonunion" or lack of healing for the fracture.