S99.121K
ICD-10-CMSalter-Harris Type II physeal fracture of right metatarsal, subsequent encounter for fracture with nonunion
This code signifies a Salter-Harris Type II fracture affecting the growth plate (physis) of a metatarsal bone in the right foot. A Type II fracture involves the physis and extends into the metaphysis, sparing the epiphysis. The "nonunion" aspect indicates that the fracture has failed to heal completely after a typical healing period.
Apply this code for follow-up encounters where a patient is being treated for a previously diagnosed Salter-Harris Type II physeal fracture of the right metatarsal that has not united. This includes situations where further interventions, such as bone grafting or revision surgery, are being considered or performed due to the nonunion. It is also appropriate for ongoing management and monitoring of the nonunion.
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