Unsp fx left femur, subs for opn fx type I/2 w nonunion

This code describes a left femur fracture of an unspecified nature that has failed to heal properly, resulting in a nonunion. The initial injury was an open fracture, specifically classified as Type I or II, and the patient is currently receiving ongoing care for this complication.

This code is appropriate for subsequent encounters when a patient with a previously diagnosed open Type I or II left femur fracture (of unspecified type) presents with evidence of nonunion. It signifies that the fracture fragments have not united and further treatment, such as surgical intervention or prolonged immobilization, is being managed.

• Always ensure documentation clearly specifies "nonunion" and the "subsequent encounter" status.
• Verify the original fracture was indeed an open Type I or II to accurately apply this code.
• Do not use this code for initial encounters or for fractures that are healing normally.