Oth fx left patella, subs for opn fx type I/2 w nonunion

This code signifies a non-healing fracture of the left kneecap, specifically an "other" type of fracture (not a transverse, comminuted, or unspecified type), that was initially an open fracture classified as Type I or II. The patient is in a subsequent phase of care, indicating ongoing treatment for this persistent nonunion.

Use this code when documenting follow-up care for a patient whose left patellar fracture, initially an open Type I or II, has failed to heal properly and is now considered a nonunion. This applies to situations where the fracture type is not specifically transverse or comminuted.

• Ensure documentation clearly specifies "nonunion" and the "left" patella.
• Verify the initial open fracture was classified as Type I or II.
• Confirm the encounter is for subsequent care, not the initial treatment of the fracture.