Nondisp fx of ant wl of unsp acetab, subs for fx w nonunion

This code describes a fracture of the front part of the hip socket (acetabulum) that has not shifted from its normal position. The "K" seventh character indicates that this is a subsequent encounter for a fracture that has failed to heal properly, meaning there is nonunion of the bone fragments.

This code is appropriate for follow-up visits where a patient is being treated for a previously diagnosed nondisplaced anterior wall acetabular fracture that has developed nonunion. This includes encounters for ongoing management, evaluation of nonunion, or preparation for surgical intervention to address the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the anterior wall of the acetabulum.
• Confirm the fracture is nondisplaced; displaced fractures use different codes.
• This seventh character "K" is only for subsequent encounters; initial encounters or routine healing would use different seventh characters.