Disp fx of navicular of unsp foot, subs for fx w malunion

This code describes a situation where a patient has a navicular (scaphoid) bone fracture in an unspecified foot that was initially displaced but has healed incorrectly, resulting in a malunion. This specific code is used during follow-up care for the management of this malunited fracture.

Use this code for subsequent encounters when a patient is being treated for a previously diagnosed displaced navicular fracture of the foot that has healed in an anatomically incorrect position. This would include visits for ongoing assessment, physical therapy, or surgical planning related to the malunion.

• Ensure documentation clearly states "malunion" and specifies the navicular bone of the foot.
• Verify the fracture was initially displaced, even if the current encounter focuses on the malunion.
• Do not use this code for initial fracture treatment or for nonunion; specific codes exist for those scenarios.