Oth physl fx low end ulna, unsp arm, 7thD

This code signifies a follow-up encounter for a fracture involving the growth plate (physis) at the lower end of the ulna, where the healing process is progressing normally. The specific arm (left or right) is not documented.

Apply this code when a patient presents for a routine follow-up visit after an initial diagnosis of a lower ulnar physeal fracture, and there are no complications or delays in healing. This is appropriate for subsequent cast checks, imaging reviews showing expected callus formation, or general re-evaluations during the healing phase.

• Ensure the encounter is for routine follow-up and not for initial treatment or complications.
• Verify that the documentation explicitly states "unspecified arm" if laterality is not noted.
• Pair with an external cause code if the injury mechanism is known and relevant.