Stress fracture, right humerus, subs for fx w nonunion

This code signifies a stress fracture affecting the right humerus that has failed to heal properly, indicating a nonunion. It is used when the patient is receiving routine care during the healing phase for this specific complication.

Apply this code for follow-up encounters where a patient is being treated for a right humeral stress fracture that has progressed to nonunion. Documentation should clearly state the location (right humerus), the type of fracture (stress), and the nonunion status, along with the "subsequent encounter" nature of the visit.

• Ensure documentation explicitly states "nonunion" for the stress fracture, not just delayed healing.
• Verify the laterality is "right humerus" as specified; separate codes exist for the left or unspecified side.
• This code is for subsequent encounters; an initial encounter for the nonunion would use a different seventh character.