Monteggia's fx l ulna, 7thR

This code signifies a Monteggia's fracture involving the left ulna that has previously been treated but has healed in a misaligned or deformed position (malunion). This specific type of Monteggia's fracture was initially an open fracture, classified as type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and bone exposure.

Use this code when documenting follow-up care for a patient who sustained an open Monteggia's fracture of the left ulna (types IIIA, IIIB, or IIIC) and is now presenting with complications related to malunion. This applies to situations where the patient is receiving ongoing treatment, evaluation, or management for the improperly healed fracture.

• Ensure documentation clearly specifies "malunion" and the "subsequent encounter" status for the Monteggia's fracture.
• Verify the original fracture was an open fracture of the left ulna, specifically type IIIA, IIIB, or IIIC.
• Do not use this code for initial treatment or for nonunion; a different code would be appropriate for those scenarios.