S59.121P
ICD-10-CMSalter-Harris Type II physeal fracture of upper end of radius, right arm, subsequent encounter for fracture with malunion
This code signifies a healing fracture of the growth plate (physis) at the proximal end of the right radius, specifically a Salter-Harris Type II injury. The fracture is in a subsequent encounter phase, indicating ongoing management, and has developed malunion, meaning it has healed in an abnormal or misaligned position.
Apply this code for follow-up visits where a pediatric patient's previously diagnosed Salter-Harris Type II fracture of the right proximal radius is being monitored, and radiographic or clinical assessment confirms malunion. This is appropriate for encounters after the initial treatment, but before the fracture is fully healed without complication.
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