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

This code signifies a fracture in the uppermost part of the sacrum (Zone I) that has not shifted from its original position, and the patient is presenting for ongoing treatment of a nonunion. A nonunion indicates that the fracture has failed to heal completely after a reasonable period.

Use this code for follow-up encounters where a patient with a previously diagnosed nondisplaced Zone I sacral fracture is being managed for a confirmed nonunion. This applies to situations such as continued conservative management, evaluation for surgical intervention, or post-operative care for nonunion repair.

• Ensure documentation clearly states "nonunion" and specifies the sacral fracture as Zone I and nondisplaced.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different seventh character.
• Always review the entire medical record to confirm the fracture site, displacement, and healing status.