Nondisp unsp fx unsp great toe, subs for fx w malunion

This code signifies a follow-up encounter for a fracture of the great toe (hallux) that was initially nondisplaced and whose specific location on the toe is not documented. The key aspect of this code is that the fracture is now healing improperly, resulting in a malunion.

Apply this code when a patient presents for ongoing care of a great toe fracture that has previously been treated, and imaging or clinical assessment confirms that the bone fragments have healed in an anatomically incorrect position. This would be used after the initial treatment phase, during the rehabilitation or monitoring period for the malunion.

• Ensure documentation clearly states "malunion" and specifies the great toe.
• Verify this is a subsequent encounter, not the initial treatment or an encounter for routine healing without complications.
• Confirm the original fracture was nondisplaced and the specific site on the great toe was unspecified.