S82.425P
ICD-10-CMNondisplaced transverse fracture of shaft of left fibula, subsequent encounter for closed fracture with malunion
This code describes a fibular shaft fracture on the left side that has not shifted from its normal position, but is healing improperly. Specifically, the bone fragments have united in a deformed or misaligned way, even though the skin over the fracture site remains intact. This indicates a complication of healing where the bone has joined, but not in an anatomically correct manner.
This code is appropriate for documenting follow-up care for a patient whose left fibular shaft fracture, initially treated non-surgically, is now exhibiting malunion. It is used when the fracture was previously closed and the patient is presenting for ongoing management of this healing complication. This would include scenarios where the malunion is being monitored or further intervention is being considered.
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