Oth fx shaft of r fibula, 7thN

This code describes a nonunion of an open fracture (Gustilo type IIIA, IIIB, or IIIC) of the shaft of the right fibula, indicating that the fracture has failed to heal after an initial treatment. The "subsequent encounter" signifies ongoing care for the nonunion, not the initial injury.

Apply this code for patients presenting for follow-up care, surgical intervention, or management of a previously treated open right fibula shaft fracture that has not achieved bony union. This is appropriate when the documentation clearly indicates a nonunion status for an open fracture of the specified Gustilo type.

• Ensure documentation specifies "nonunion" and the Gustilo classification (IIIA, IIIB, or IIIC) for the open fracture.
• Verify the laterality (right) and bone (fibula shaft) are accurately documented.
• Confirm this is a subsequent encounter for the nonunion, not an initial treatment for a new fracture or a routine follow-up for a healed fracture.