Nondisp longitud fx l patella, 7thM

This code signifies a left kneecap fracture that runs lengthwise and has not shifted out of alignment. It specifically indicates that the initial injury was an open fracture (Type I or II) and that the bone has failed to heal properly during a follow-up visit.

Apply this code for patients presenting for ongoing management of a previously sustained open longitudinal patellar fracture of the left knee, where imaging or clinical assessment confirms nonunion. This is appropriate for subsequent encounters after the initial treatment of the open fracture.

• Ensure documentation clearly specifies "left" patella and "longitudinal" fracture type.
• Verify that the original injury was an "open fracture type I or II" and that "nonunion" is explicitly stated or clearly implied.
• This code is for subsequent encounters; use the appropriate initial encounter code for the acute injury.