Nondisp fx of neck of left talus, subs for fx w malunion

This code describes a situation where a patient has a fracture in the neck of their left talus bone that was initially nondisplaced, meaning the bone fragments remained in their normal alignment. The current encounter is for ongoing treatment of this fracture, but it is healing improperly, resulting in a malunion.

Use this code when a patient presents for follow-up care, cast changes, physical therapy, or other treatment related to a previously diagnosed nondisplaced left talar neck fracture that is now demonstrating signs of malunion. This applies to situations where the fracture is not yet fully healed, but the healing process is abnormal.

• Ensure documentation clearly states "left talus," "nondisplaced," and "malunion" for the fracture.
• This code is for subsequent encounters; an initial encounter would use a different seventh character.
• Confirm the malunion is specifically related to the talar neck fracture, not another bone.