S82.425R
ICD-10-CMNondisplaced transverse fracture of shaft of left fibula, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
This code describes a left fibula shaft fracture that runs horizontally (transverse) and is not displaced, meaning the bone fragments are still in their normal alignment. This specific instance involves an open fracture (skin broken) that was initially classified as a severe type (IIIA, IIIB, or IIIC) and has subsequently healed in an imperfect position (malunion).
Use this code when documenting a follow-up visit for a patient who previously sustained a severe open transverse fracture of the left fibula shaft, and imaging or clinical assessment now confirms that the fracture has healed with a noticeable deformity or angulation. This applies to ongoing management of the malunion, such as planning for corrective surgery or monitoring its impact.
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