Displaced dome fx unsp talus, subs for fx w nonunion

This code signifies a fracture of the dome (superior articular surface) of the talus, which is displaced from its normal anatomical position. The patient is in a subsequent phase of care for this fracture, and the bone fragments have failed to unite or heal properly, indicating a nonunion. The specific talus (left or right) is not documented.

Apply this code when a patient presents for follow-up care of a previously diagnosed, displaced talar dome fracture that has not healed. This includes situations where surgical intervention for nonunion is being planned or has already occurred, or during ongoing conservative management of a nonunion. It is used when the laterality of the talus is not specified in the medical record.

• Ensure documentation clearly states "nonunion" for the fracture.
• Confirm the encounter is for subsequent care, not initial treatment.
• Only use this code when laterality (left/right) of the talus is explicitly unspecified.