Nondisp seg fx shaft of ulna, r arm, 7thK

This code signifies a specific type of ulna fracture in the right arm where the bone is broken into at least three pieces (segmental) but remains in its natural alignment (nondisplaced). The encounter is for ongoing management of this closed fracture, specifically addressing a complication where the bone fragments are failing to heal together (nonunion).

Apply this code when a patient presents for follow-up care of a previously diagnosed, nondisplaced segmental fracture of the right ulnar shaft, and documentation confirms that the fracture is not healing as expected (nonunion). This would be used for subsequent visits after the initial treatment, such as for evaluation of nonunion, planning for revision surgery, or ongoing conservative management of the nonunion.

• Ensure documentation clearly specifies "nondisplaced" and "segmental" for the ulnar shaft fracture.
• Verify that the encounter is for a "subsequent encounter" and that "nonunion" is explicitly documented as a complication.
• Always code the underlying condition (nonunion) first, followed by any associated external cause codes if applicable.