S99.129P
ICD-10-CMSalter-Harris Type II physeal fracture of unspecified metatarsal, subsequent encounter for fracture with malunion
This code describes a Salter-Harris Type II fracture affecting the growth plate of an unspecified metatarsal bone in the foot, which is currently in a healing phase but has united in an anatomically incorrect position (malunion). This specific type of physeal fracture involves a break through the growth plate and extending into the metaphysis.
Use this code for follow-up encounters where a patient is being treated for a previously diagnosed Salter-Harris Type II metatarsal fracture that has healed with malunion. This applies when the malunion is the primary focus of the current visit, such as for assessment of function, pain management related to the malunion, or planning for corrective procedures.
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