Oth physl fx low end humer, unsp arm, subs for fx w malunion

This code signifies a malunion of a physeal fracture at the distal humerus, indicating a previous fracture that has healed in an anatomically incorrect position. It specifically applies to a subsequent encounter for this malunion, where the arm affected is not specified.

Use this code when a patient presents for follow-up care or management of a previously treated distal humeral physeal fracture that has healed with malalignment. This applies when the specific side (left or right) of the arm is not documented.

• Ensure documentation clearly states "malunion" and not just "nonunion" or "delayed union."
• Verify that the encounter is for the subsequent management of the malunion, not the initial fracture treatment.
• Only use this code when the laterality of the arm is truly unspecified in the medical record.