Displ seg fx shaft of ulna, unsp arm, 7thQ

This code signifies a follow-up encounter for a patient who previously sustained a segmental fracture of the ulna shaft, meaning the bone broke in at least two places, creating a segment. The fracture was initially an open fracture (skin broken) classified as Type I or II, and has since healed in an abnormal alignment (malunion). The specific arm affected is not documented.

Apply this code for subsequent visits related to the management of a malunited segmental ulna shaft fracture that was originally an open Type I or II injury. This includes evaluations for pain, limited range of motion, or planning for corrective osteotomy due to the malunion. It is used when the laterality of the arm is not specified in the medical record.

• Ensure documentation clearly states "malunion" and confirms the original injury was an open Type I or II fracture.
• Verify this is a subsequent encounter, not the initial treatment of the fracture.
• Only use this code when the medical record does not specify the affected arm (right or left).