Which procedure does not involve coding separately for repositioning if a cast or splint is applied?

The procedure that does not involve coding separately for repositioning when a cast or splint is applied is reduction. In the context of medical coding, reduction specifically refers to the process of realigning the fractured or dislocated bone or joint before immobilization with a cast or splint.

When a reduction is performed, the repositioning of the bone is considered part of the procedure itself, which means that it is included in the coding for the reduction itself. This integration occurs because both the repositioning and the application of the cast or splint are part of the overall treatment for the fracture or dislocation, thereby streamlining the coding process.

In contrast, procedures such as transplantation, embolization, and division typically involve distinct actions that may require separate coding. These procedures do not commonly include repositioning as part of their primary actions, which necessitates separate coding for any immobilization methods like casts or splints applied afterward. Therefore, reduction stands out as the procedure where the action of repositioning is inherently part of the encapsulated service, eliminating the need for separate coding.