Nondisp commnt fx shaft of rad, unsp arm, 7thK

This code signifies a comminuted fracture of the radial shaft that is not displaced, located in an unspecified arm. The patient is in a subsequent phase of care, and the fracture, which was initially closed, has failed to heal properly, resulting in a nonunion.

Apply this code for follow-up encounters where a patient with a previously diagnosed, closed, nondisplaced comminuted radial shaft fracture (unspecified arm) is being treated for a confirmed nonunion. This is appropriate when the initial injury has passed the acute phase and the bone fragments have not fused.

• Ensure documentation clearly specifies "nondisplaced" and "comminuted" for the radial shaft fracture.
• Verify the encounter is for subsequent care and explicitly states "nonunion" of a closed fracture.
• Confirm the arm is unspecified; otherwise, a more specific laterality code should be chosen.