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

This code signifies a sacral fracture located in Zone II, which involves the sacral foramina. The fracture is currently in a nonunion state, meaning it has failed to heal properly, and the patient is receiving ongoing care for this condition. The specific side of the sacrum affected is not documented.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed, unhealed Zone II sacral fracture. It applies when the medical record explicitly states nonunion and does not specify laterality. This includes situations involving continued conservative management, surgical planning for revision, or ongoing monitoring of the nonunion.

• Ensure documentation clearly specifies "nonunion" for the sacral fracture.
• Verify the fracture location is within Zone II (involving the sacral foramina).
• Only use this code for subsequent encounters; an initial encounter would use an A or D seventh character.