Unsp Zone I fracture of sacrum, subs for fx w nonunion

This code signifies a fracture in Zone I of the sacrum where the specific type of fracture is not documented. Importantly, it indicates that the fracture has not healed properly and the patient is presenting for follow-up care related to this ongoing nonunion.

This code is appropriate for subsequent encounters when a patient is being treated for a previously diagnosed, unspecified Zone I sacral fracture that has failed to unite. This would include follow-up appointments for monitoring, further imaging, or planning for interventions to address the nonunion.

• Ensure documentation clearly states "nonunion" and specifies a "subsequent encounter" for the fracture.
• Verify the fracture location is documented as Zone I of the sacrum.
• Do not use this code for initial encounters or for fractures that have healed.