Monteggia's fx left ulna, subs for clos fx w malunion

This code signifies a Monteggia's fracture involving the left ulna, which is a specific type of fracture characterized by a fracture of the proximal or middle third of the ulna with an associated dislocation of the radial head. The "malunion" indicates that the fracture has healed, but in an unsatisfactory position or alignment, leading to functional impairment. This particular code is used during a follow-up visit after the initial treatment.

Use this code for a patient presenting for follow-up care of a previously treated Monteggia's fracture of the left ulna that has healed with malunion. This applies to situations where the patient is being evaluated for ongoing symptoms, considering corrective surgery, or undergoing rehabilitation due to the malunion. It is appropriate for any encounter after the initial treatment phase, as long as the fracture is closed.

• Ensure documentation clearly specifies "left" ulna and confirms a Monteggia's fracture pattern.
• Verify the fracture is closed and that the encounter is for a subsequent visit, not the initial treatment.
• Confirm the presence of malunion, as opposed to nonunion or routine healing, is explicitly documented by the provider.