Nondisp transcondy fx l humerus, subs for fx w nonunion

This code signifies a fracture of the lower end of the left humerus that extends through the condyles, where the bone fragments are still in their normal anatomical position. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "nonunion" specifies that the bone is failing to heal properly.

Apply this code when a patient presents for ongoing treatment of a previously diagnosed, nondisplaced transcondylar fracture of the left humerus that has not united. This would include scenarios such as evaluation for surgical intervention for nonunion, casting changes, or physical therapy related to the nonunion.

• Ensure documentation clearly states "nondisplaced" and specifies the "left" humerus.
• Verify that the encounter is for follow-up care and that nonunion is explicitly documented as the reason for the ongoing treatment.
• Do not use for initial treatment or for fractures that are healing normally.