Stress fracture, right finger(s), subs for fx w nonunion

This code signifies a stress fracture affecting one or more fingers on the patient's right hand. Crucially, it indicates that the fracture has failed to heal properly after an initial treatment attempt, and the patient is presenting for ongoing management of this nonunion.

Apply this code when a patient presents for follow-up care of a previously diagnosed right finger stress fracture that has not united. Documentation should clearly state "nonunion" and specify the right finger(s) as the affected site, along with an "S" (subsequent encounter) for the encounter type.

• Ensure documentation explicitly states "nonunion" of the stress fracture.
• Verify laterality (right finger) and the type of fracture (stress fracture) are clearly documented.
• Do not use for initial encounters or for routine healing fractures; reserve for documented nonunion in a subsequent encounter.