Oth fx right patella, subs for opn fx type 3A/B/C w nonunion

This code signifies a fracture of the right kneecap, excluding specific types like comminuted or transverse, that is currently in a state of nonunion. The initial injury was an open fracture, classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and contamination. This code is used during follow-up care for this ongoing healing complication.

This code is appropriate for documenting subsequent encounters where a patient is being treated for a right patellar fracture that has failed to heal (nonunion). It specifically applies when the original injury was an open fracture with extensive soft tissue involvement. Examples include follow-up appointments for surgical intervention for nonunion, or conservative management of a persistent nonunion.

• Ensure documentation clearly states "nonunion" and specifies the right patella.
• Verify the original fracture was an open type IIIA, IIIB, or IIIC to justify this specific code.
• Do not use for initial encounters or for fractures that are healing normally.