Unsp physl fx low end rad, unsp arm, subs for fx w nonunion

This code signifies an unconfirmed growth plate fracture at the distal end of the radius, with the specific arm (left or right) not documented. The key aspect is that the fracture has failed to heal properly, and the patient is presenting for follow-up care related to this nonunion.

This code is appropriate for subsequent encounters when a patient is being treated for a previously diagnosed, but unspecified, physeal fracture of the distal radius that has not united. It should be used when the medical record clearly indicates nonunion and the specific arm or laterality was not initially documented.

• Ensure documentation explicitly states "nonunion" and that this is a subsequent encounter.
• Verify that the laterality (left or right arm) is truly unspecified in the medical record before assigning this code.
• If the specific type of physeal fracture (e.g., Salter-Harris type) is known, a more specific code should be used.