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

This code signifies a fracture of the ulna's shaft that has broken into multiple fragments but remains in its anatomical position. The patient is in a subsequent phase of treatment, and the fracture has failed to heal properly, indicating a nonunion.

This code is appropriate for follow-up encounters where a patient with a previously diagnosed comminuted ulnar shaft fracture, which was initially closed and nondisplaced, is now presenting with evidence of nonunion. This would typically be used when the patient is undergoing further management for the unhealed fracture, such as considering revision surgery or prolonged immobilization.

• Ensure documentation clearly states "nondisplaced" and "comminuted" for the ulnar shaft fracture.
• Verify that the encounter is "subsequent" and that "nonunion" is explicitly documented as the reason for the ongoing care.
• Confirm the fracture was initially "closed" to accurately apply this code.