S89.219P
ICD-10-CMSalter-Harris Type I physeal fracture of upper end of unspecified fibula, subsequent encounter for fracture with malunion
This code signifies a Salter-Harris Type I fracture affecting the growth plate at the upper end of an unspecified fibula, which is now in a healing phase but has united in an anatomically incorrect position. This type of fracture involves a separation of the epiphysis from the metaphysis through the physis (growth plate). The "malunion" indicates that the bone fragments have healed, but with some degree of deformity or misalignment.
Use this code for follow-up encounters where a patient is being treated for a previously diagnosed Salter-Harris Type I fracture of the proximal fibula that has healed with malunion. This applies to situations where the malunion is being monitored, evaluated for potential corrective procedures, or is causing ongoing symptoms. It is appropriate when the fracture is no longer acute but the healing has resulted in an imperfect alignment.
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