S99.009P
ICD-10-CMUnspecified physeal fracture of unspecified calcaneus, subsequent encounter for fracture with malunion
This code describes a fracture involving the growth plate (physis) of the heel bone (calcaneus) where the specific location or type of fracture is not documented. Importantly, this code is used when the patient is receiving care for a previously diagnosed physeal fracture that has healed incorrectly, resulting in a malunion.
Use this code for follow-up encounters where a patient presents with complications from a calcaneal physeal fracture that has healed in a misaligned position. This would include situations where the malunion is causing ongoing pain, functional limitations, or requiring further intervention such after initial casting or surgical repair.
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