Unsp fx shaft of humerus, right arm, subs for fx w nonunion

This code signifies a situation where a patient has sustained a fracture to the shaft of their right humerus, but the specific type of fracture (e.g., transverse, oblique, spiral) is not documented. Crucially, this code is used during a follow-up visit where the fracture has failed to heal properly, indicating a nonunion.

Apply this code when a patient presents for ongoing management of a right humeral shaft fracture that has not united, and the initial fracture type was not specified in the medical record. This is appropriate for subsequent encounters after the initial treatment, such as for surgical intervention for nonunion or continued conservative management.

• Ensure documentation clearly states "nonunion" and specifies the right humerus shaft.
• Verify that the encounter is for follow-up care of the fracture, not the initial treatment.
• Confirm the fracture type is truly "unspecified" in the medical record; if a specific type is documented, a more precise code should be used.