Oth fx shaft of right tibia, subs for clos fx w malunion

This code signifies a non-specific fracture located in the shaft of the right tibia that has previously been treated but is now presenting with malunion. Malunion indicates that the bone fragments have healed in an unsatisfactory position, potentially leading to functional impairment or deformity. This is a subsequent encounter, meaning the patient is receiving follow-up care for this previously diagnosed and treated closed fracture.

Apply this code when a patient presents for ongoing management of a right tibial shaft fracture that has healed incorrectly. This includes scenarios where the malunion is being evaluated, monitored, or treated non-surgically. It is appropriate for follow-up visits after initial treatment, but before definitive surgical correction of the malunion, if applicable.

• Ensure documentation clearly specifies "right tibia" and "shaft" to differentiate from other tibial fracture locations.
• Confirm the fracture is described as "closed" and the encounter is "subsequent" for a previously treated fracture.
• Distinguish from nonunion (S82.291N) or delayed union (S82.291K) as these have distinct coding pathways.