Oth physeal fx upper end of l fibula, subs for fx w malunion

This code signifies a physeal fracture, specifically at the upper end of the left fibula, that is currently experiencing malunion. The patient is in a subsequent phase of care for this injury, indicating ongoing management or follow-up after initial treatment. Malunion implies the bone has healed in an anatomically incorrect or misaligned position.

Use this code for patients presenting with a previously diagnosed physeal fracture of the proximal left fibula where imaging confirms the fracture has healed, but in an unsatisfactory alignment. This is appropriate for follow-up visits where the malunion is being monitored, evaluated for corrective surgery, or managed non-surgically. It is not for initial injury presentation or for nonunion.

• Ensure documentation clearly specifies "malunion" and the "left fibula" to support this code.
• Verify this is a subsequent encounter, not an initial treatment or an encounter for a new injury.
• Distinguish carefully between malunion (healed incorrectly) and nonunion (not healed at all).