Oth fx upr & low end unsp fibula, 7thN

This code describes a non-healing fracture located at either the upper or lower end of the fibula, where the specific end is not documented. The fracture was initially an open fracture of severe type (IIIA, IIIB, or IIIC), and the patient is now receiving follow-up care for the nonunion.

This code is appropriate for patients presenting for ongoing management of a previously treated severe open fibula fracture (either proximal or distal) that has failed to heal. This includes situations where surgical intervention for nonunion is being planned or performed, or during follow-up visits to monitor the nonunion.

• Ensure documentation clearly states "nonunion" and specifies a previous open fracture of type IIIA, IIIB, or IIIC.
• Confirm the fracture is of the fibula, and that the specific end (proximal or distal) is not documented.
• This code is for subsequent encounters; an initial encounter for the nonunion would use a different seventh character.