Nondisp transcondy fx r humerus, subs for fx w nonunion

This code describes a specific type of humerus fracture, located at the transcondylar region of the right arm, which is not displaced. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone is failing to heal properly.

Use this code for patients presenting for ongoing treatment of a right transcondylar humerus fracture that was initially nondisplaced, but is now demonstrating nonunion. This would apply to follow-up appointments where the physician is assessing the lack of healing and planning further interventions, such as revision surgery or bone grafting.

• Ensure documentation clearly states "nonunion" and specifies the right humerus and transcondylar location.
• Verify the fracture was initially nondisplaced; if it was displaced and subsequently reduced, a different code may be appropriate.
• Pair this code with external cause codes (e.g., V00-Y99) and activity codes (e.g., Y93.-) if the encounter is for the initial injury or a complication related to the original injury.