S89.221P
ICD-10-CMSalter-Harris Type II physeal fracture of upper end of right fibula, subsequent encounter for fracture with malunion
This code signifies a specific growth plate fracture in the upper part of the right lower leg bone (fibula) that has been previously treated but has healed in an abnormal position. This type of fracture involves both the growth plate and a portion of the metaphysis, indicating a Salter-Harris Type II classification. The "malunion" indicates that the bone fragments have united, but with an unacceptable degree of angulation, rotation, or shortening.
Use this code when documenting follow-up care for a patient who sustained a Salter-Harris Type II fracture of the proximal right fibula, and imaging or clinical assessment confirms that the fracture has healed with a deformity. This applies to situations where the malunion is being monitored, or further intervention (e.g., corrective osteotomy) is being considered or performed.
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