Bent bone of left ulna, subs for clos fx w malunion

This code signifies a left ulna fracture that has healed in an abnormal position (malunion), specifically where the bone is bent, and the patient is presenting for follow-up care after the initial treatment. It indicates a persistent anatomical deformity of the ulna resulting from the fracture healing process.

This code is appropriate for subsequent encounters when a patient is being managed for a previously treated closed fracture of the left ulna that has resulted in a bent bone malunion. This includes follow-up appointments for monitoring, assessment of function, or planning for potential corrective procedures related to the malunion.

• Ensure documentation clearly specifies "left" ulna and "bent bone" malunion.
• Verify that the encounter is for a subsequent visit related to the malunion, not the initial fracture treatment.
• Confirm the fracture was "closed" at the time of initial injury.